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534 lines
12 KiB
LLVM
534 lines
12 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-macosx -mcpu=penryn | 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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entry:
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; CHECK: test2
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: test2b
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: atest2
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: atest2b
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; CHECK: btl %eax, %ecx
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: test3
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: test3b
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: testne2
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: testne2b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: atestne2
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: atestne2b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: testne3
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: testne3b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query2
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query2b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: aquery2
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: aquery2b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query3
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp3, %tmp29 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query3b
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp3, %tmp29 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query3x
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp eq i32 %tmp29, %tmp3 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: query3bx
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; CHECK: btl %eax, %ecx
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; CHECK: jae
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp eq i32 %tmp29, %tmp3 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: queryne2
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: queryne2b
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = lshr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: aqueryne2
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: aqueryne2b
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = ashr i32 %x, %n ; <i32> [#uses=1]
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%tmp3 = and i32 1, %tmp29
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%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: queryne3
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp3, %tmp29 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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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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entry:
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; CHECK: queryne3b
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %x, %tmp29
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%tmp4 = icmp ne i32 %tmp3, %tmp29 ; <i1> [#uses=1]
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br i1 %tmp4, label %bb, label %UnifiedReturnBlock
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bb: ; preds = %entry
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call void @foo()
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ret void
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UnifiedReturnBlock: ; preds = %entry
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ret void
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}
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define void @queryne3x(i32 %x, i32 %n) nounwind {
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entry:
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; CHECK: queryne3x
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; CHECK: btl %eax, %ecx
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; CHECK: jb
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%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
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%tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1]
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%tmp4 = icmp ne i32 %tmp29, %tmp3 ; <i1> [#uses=1]
|
|
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
|
|
|
|
bb: ; preds = %entry
|
|
call void @foo()
|
|
ret void
|
|
|
|
UnifiedReturnBlock: ; preds = %entry
|
|
ret void
|
|
}
|
|
|
|
define void @queryne3bx(i32 %x, i32 %n) nounwind {
|
|
entry:
|
|
; CHECK: queryne3bx
|
|
; CHECK: btl %eax, %ecx
|
|
; CHECK: jb
|
|
%tmp29 = shl i32 1, %n ; <i32> [#uses=1]
|
|
%tmp3 = and i32 %x, %tmp29
|
|
%tmp4 = icmp ne i32 %tmp29, %tmp3 ; <i1> [#uses=1]
|
|
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
|
|
|
|
bb: ; preds = %entry
|
|
call void @foo()
|
|
ret void
|
|
|
|
UnifiedReturnBlock: ; preds = %entry
|
|
ret void
|
|
}
|
|
|
|
declare void @foo()
|
|
|
|
define zeroext i1 @invert(i32 %flags, i32 %flag) nounwind {
|
|
; CHECK: btl
|
|
entry:
|
|
%neg = xor i32 %flags, -1
|
|
%shl = shl i32 1, %flag
|
|
%and = and i32 %shl, %neg
|
|
%tobool = icmp ne i32 %and, 0
|
|
ret i1 %tobool
|
|
}
|