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d0175fe81c
This patch adds a lot of additional tests, focusing on loops and GEP arithmetic. Some of the tests expose existing problems, which will be fixed soon.
71 lines
2.3 KiB
LLVM
71 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -constraint-elimination -S %s | FileCheck %s
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declare void @use(i1)
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; Make sure we do not crash when trying to inject info about vector values from SCEV.
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define void @test_vector_iv(i32 %x, i1 %c) {
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; CHECK-LABEL: @test_vector_iv(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[PRE:%.*]], label [[BB2:%.*]]
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; CHECK: pre:
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; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X:%.*]], 10
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; CHECK-NEXT: br i1 [[C_1]], label [[LOOP:%.*]], label [[BB2]]
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; CHECK: loop:
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; CHECK-NEXT: [[IV:%.*]] = phi <4 x i8> [ zeroinitializer, [[PRE]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[T_1:%.*]] = icmp ule i32 [[X]], 10
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: [[F_1:%.*]] = icmp ugt i32 [[X]], 10
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C_2:%.*]] = icmp ule i32 [[X]], 9
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; CHECK-NEXT: call void @use(i1 [[C_2]])
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; CHECK-NEXT: [[C_3:%.*]] = icmp ugt i32 [[X]], 9
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; CHECK-NEXT: call void @use(i1 [[C_3]])
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw <4 x i8> [[IV]], <i8 1, i8 1, i8 1, i8 1>
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; CHECK-NEXT: [[E:%.*]] = extractelement <4 x i8> [[IV_NEXT]], i8 2
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; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[E]], 100
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; CHECK-NEXT: br i1 [[EC]], label [[EXIT:%.*]], label [[LOOP]]
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; CHECK: exit:
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; CHECK-NEXT: [[C_4:%.*]] = icmp ule i32 [[X]], 10
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret void
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; CHECK: bb2:
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; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i32 [[X]], 10
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; CHECK-NEXT: call void @use(i1 [[C_5]])
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %c, label %pre, label %bb2
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pre:
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%c.1 = icmp ule i32 %x, 10
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br i1 %c.1, label %loop, label %bb2
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loop:
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%iv = phi <4 x i8> [ zeroinitializer, %pre ], [ %iv.next, %loop ]
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%t.1 = icmp ule i32 %x, 10
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call void @use(i1 %t.1)
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%f.1 = icmp ugt i32 %x, 10
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call void @use(i1 %f.1)
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%c.2 = icmp ule i32 %x, 9
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call void @use(i1 %c.2)
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%c.3 = icmp ugt i32 %x, 9
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call void @use(i1 %c.3)
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%iv.next = add nuw nsw <4 x i8> %iv, <i8 1, i8 1, i8 1, i8 1>
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%e = extractelement <4 x i8> %iv.next, i8 2
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%ec = icmp eq i8 %e, 100
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br i1 %ec, label %exit, label %loop
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exit:
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%c.4 = icmp ule i32 %x, 10
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call void @use(i1 %c.4)
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ret void
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bb2:
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%c.5 = icmp ugt i32 %x, 10
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call void @use(i1 %c.5)
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ret void
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}
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