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61a834b1e0
This includes a fix for cases where things get marked as overdefined in ResolvedUndefsIn, but we later discover a constant. To avoid crashing, we consistently bail out on overdefined values in the visitors. This is similar to the previous behavior with forcedconstant. This reverts the revert commit 02b72f564c8be0b4f4337d5c4a3fcf7e8018a818.
38 lines
949 B
LLVM
38 lines
949 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -ipsccp < %s | FileCheck %s
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declare void @foo()
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declare void @goo()
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declare void @patatino()
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define void @test1(i32 %t) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[CHOICE:%.*]] = icmp eq i32 undef, -1
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; CHECK-NEXT: switch i1 [[CHOICE]], label [[FIRST:%.*]] [
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; CHECK-NEXT: i1 false, label [[SECOND:%.*]]
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; CHECK-NEXT: i1 true, label [[THIRD:%.*]]
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; CHECK-NEXT: ]
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; CHECK: first:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: ret void
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; CHECK: second:
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; CHECK-NEXT: call void @goo()
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; CHECK-NEXT: ret void
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; CHECK: third:
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; CHECK-NEXT: call void @patatino()
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; CHECK-NEXT: ret void
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;
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%choice = icmp eq i32 undef, -1
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switch i1 %choice, label %first [i1 0, label %second
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i1 1, label %third]
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first:
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call void @foo()
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ret void
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second:
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call void @goo()
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ret void
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third:
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call void @patatino()
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ret void
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}
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