792a6f8119
These date back to when the non-intrinsic format of variable locations was still being tested and was behind a compile-time flag, so not all builds / bots would correctly run them. The solution at the time, to get at least some test coverage, was to have tests opt-in to non-intrinsic debug-info if it was built into LLVM. Nowadays, non-intrinsic format is the default and has been on for more than a year, there's no need for this flag to exist. (I've downgraded the flag from "try" to explicitly requesting non-intrinsic format in some places, so that we can deal with tests that are explicitly about non-intrinsic format in their own commit).
29 lines
960 B
LLVM
29 lines
960 B
LLVM
; RUN: opt < %s -passes=lcssa -S | FileCheck %s
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; RUN: opt < %s -passes=debugify,lcssa -S | FileCheck -check-prefix=DEBUGIFY %s
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define void @lcssa(i1 %S2) {
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; CHECK-LABEL: @lcssa
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entry:
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br label %loop.interior
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loop.interior: ; preds = %post.if, %entry
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br i1 %S2, label %if.true, label %if.false
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if.true: ; preds = %loop.interior
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%X1 = add i32 0, 0 ; <i32> [#uses=1]
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br label %post.if
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if.false: ; preds = %loop.interior
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%X2 = add i32 0, 1 ; <i32> [#uses=1]
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br label %post.if
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post.if: ; preds = %if.false, %if.true
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%X3 = phi i32 [ %X1, %if.true ], [ %X2, %if.false ] ; <i32> [#uses=1]
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br i1 %S2, label %loop.exit, label %loop.interior
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loop.exit: ; preds = %post.if
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; CHECK: %X3.lcssa = phi i32
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; DEBUGIFY: %X3.lcssa = phi i32 {{.*}}, !dbg ![[DbgLoc:[0-9]+]]
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; CHECK: %X4 = add i32 3, %X3.lcssa
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%X4 = add i32 3, %X3 ; <i32> [#uses=0]
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ret void
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}
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; Make sure the lcssa phi has %X3's debug location
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; DEBUGIFY: ![[DbgLoc]] = !DILocation(line: 7
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