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https://github.com/RPCS3/llvm-mirror.git
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37e609e198
The following condition expression ( a >> n) & 1 is converted to "bt a, n" instruction. It works on all intel targets. But on AVX-512 it was broken because the expression is modified to (truncate (a >>n) to i1). I added the new sequence (truncate (a >>n) to i1) to the BT pattern. Differential Revision: https://reviews.llvm.org/D22354 llvm-svn: 275950
599 lines
12 KiB
LLVM
599 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s
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; PR3253
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; The register+memory form of the BT instruction should be usable on
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; pentium4, however it is currently disabled due to the register+memory
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; form having different semantics than the register+register form.
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; Test these patterns:
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; (X & (1 << N)) != 0 --> BT(X, N).
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; ((X >>u N) & 1) != 0 --> BT(X, N).
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; as well as several variations:
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; - The second form can use an arithmetic shift.
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; - Either form can use == instead of !=.
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; - Either form can compare with an operand of the &
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; instead of with 0.
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; - The comparison can be commuted (only cases where neither
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; operand is constant are included).
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; - The and can be commuted.
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define void @test2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: test2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB0_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @test2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: test2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB1_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @atest2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: atest2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB2_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @atest2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: atest2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB3_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @test3(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: test3:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB4_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %tmp29, %x
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @test3b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: test3b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB5_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @testne2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: testne2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB6_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @testne2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: testne2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB7_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @atestne2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: atestne2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB8_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @atestne2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: atestne2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB9_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @testne3(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: testne3:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB10_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %tmp29, %x
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @testne3b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: testne3b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB11_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB12_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp eq i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB13_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @aquery2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: aquery2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB14_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp eq i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @aquery2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: aquery2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB15_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query3(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query3:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB16_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %tmp29, %x
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%tmp4 = icmp eq i32 %tmp3, %tmp29
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query3b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query3b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB17_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp3, %tmp29
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query3x(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query3x:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB18_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %tmp29, %x
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%tmp4 = icmp eq i32 %tmp29, %tmp3
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @query3bx(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: query3bx:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jae .LBB19_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp29, %tmp3
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @queryne2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: queryne2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB20_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp ne i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @queryne2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: queryne2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB21_2
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;
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entry:
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%tmp29 = lshr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @aqueryne2(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: aqueryne2:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB22_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 %tmp29, 1
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%tmp4 = icmp ne i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @aqueryne2b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: aqueryne2b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB23_2
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;
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entry:
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%tmp29 = ashr i32 %x, %n
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 1
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @queryne3(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: queryne3:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB24_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %tmp29, %x
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%tmp4 = icmp ne i32 %tmp3, %tmp29
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb:
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call void @foo()
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define void @queryne3b(i32 %x, i32 %n) nounwind {
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; CHECK-LABEL: queryne3b:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: btl %esi, %edi
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; CHECK-NEXT: jb .LBB25_2
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;
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entry:
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%tmp29 = shl i32 1, %n
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%tmp3 = and i32 %x, %tmp29
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|
%tmp4 = icmp ne i32 %tmp3, %tmp29
|
|
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
|
|
|
|
bb:
|
|
call void @foo()
|
|
ret void
|
|
|
|
UnifiedReturnBlock:
|
|
ret void
|
|
}
|
|
|
|
define void @queryne3x(i32 %x, i32 %n) nounwind {
|
|
; CHECK-LABEL: queryne3x:
|
|
; CHECK: # BB#0: # %entry
|
|
; CHECK-NEXT: btl %esi, %edi
|
|
; CHECK-NEXT: jb .LBB26_2
|
|
;
|
|
entry:
|
|
%tmp29 = shl i32 1, %n
|
|
%tmp3 = and i32 %tmp29, %x
|
|
%tmp4 = icmp ne i32 %tmp29, %tmp3
|
|
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
|
|
|
|
bb:
|
|
call void @foo()
|
|
ret void
|
|
|
|
UnifiedReturnBlock:
|
|
ret void
|
|
}
|
|
|
|
define void @queryne3bx(i32 %x, i32 %n) nounwind {
|
|
; CHECK-LABEL: queryne3bx:
|
|
; CHECK: # BB#0: # %entry
|
|
; CHECK-NEXT: btl %esi, %edi
|
|
; CHECK-NEXT: jb .LBB27_2
|
|
;
|
|
entry:
|
|
%tmp29 = shl i32 1, %n
|
|
%tmp3 = and i32 %x, %tmp29
|
|
%tmp4 = icmp ne i32 %tmp29, %tmp3
|
|
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
|
|
|
|
bb:
|
|
call void @foo()
|
|
ret void
|
|
|
|
UnifiedReturnBlock:
|
|
ret void
|
|
}
|
|
|
|
declare void @foo()
|
|
|
|
define zeroext i1 @invert(i32 %flags, i32 %flag) nounwind {
|
|
; CHECK-LABEL: invert:
|
|
; CHECK: # BB#0:
|
|
; CHECK-NEXT: notl %edi
|
|
; CHECK-NEXT: btl %esi, %edi
|
|
; CHECK-NEXT: setb %al
|
|
; CHECK-NEXT: retq
|
|
;
|
|
%neg = xor i32 %flags, -1
|
|
%shl = shl i32 1, %flag
|
|
%and = and i32 %shl, %neg
|
|
%tobool = icmp ne i32 %and, 0
|
|
ret i1 %tobool
|
|
}
|
|
|