derek.holloway
7502bf64a4
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34 lines
1.0 KiB
LLVM
34 lines
1.0 KiB
LLVM
; RUN: opt -passes=constraint-elimination -constraint-elimination-dump-reproducers -pass-remarks=constraint-elimination -debug %s 2>&1 | FileCheck %s
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; REQUIRES: asserts
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK: Condition icmp eq ptr %a, null implied by dominating constraints
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; CHECK-NEXT: -1 * %a <= 0
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; CHECK-NEXT: %a <= 0
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; CHECK-NEXT: Creating reproducer for %c.2 = icmp eq ptr %a, null
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; CHECK-NEXT: found external input ptr %a
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; CHECK-NEXT: Materializing assumption icmp eq ptr %a, null
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define i1 @test_ptr_null_constant(ptr %a) {
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; CHECK-LABEL: define i1 @"{{.+}}test_ptr_null_constantrepro"(ptr %a) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = icmp eq ptr %a, null
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; CHECK-NEXT: call void @llvm.assume(i1 %0)
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; CHECK-NEXT: %c.2 = icmp eq ptr %a, null
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; CHECK-NEXT: ret i1 %c.2
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; CHECK-NEXT: }
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;
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entry:
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%c.1 = icmp eq ptr %a, null
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br i1 %c.1, label %then, label %else
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then:
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%c.2 = icmp eq ptr %a, null
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ret i1 %c.2
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else:
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ret i1 false
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}
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