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TheRock/compiler/amd-llvm/llvm/test/Transforms/GVNHoist/pr36787.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

77 lines
1.4 KiB
LLVM

; RUN: opt < %s -passes=gvn-hoist -S | FileCheck %s
@g = external constant ptr
declare i32 @gxx_personality(...)
declare void @f0()
declare void @f1()
declare void @f2()
; Make sure opt won't crash and that the load
; is not hoisted from label6 to label4
;CHECK-LABEL: @func
define void @func(i1 %arg) personality ptr @gxx_personality {
invoke void @f0()
to label %3 unwind label %1
1:
%2 = landingpad { ptr, i32 }
catch ptr @g
catch ptr null
br label %16
3:
br i1 %arg, label %4, label %10
;CHECK: 4:
;CHECK-NEXT: %5 = load ptr, ptr undef, align 8
;CHECK-NEXT: invoke void @f1()
4:
%5 = load ptr, ptr undef, align 8
invoke void @f1()
to label %6 unwind label %1
;CHECK: 6:
;CHECK-NEXT: %7 = load ptr, ptr undef, align 8
;CHECK-NEXT: %8 = load ptr, ptr undef, align 8
6:
%7 = load ptr, ptr undef, align 8
%8 = load ptr, ptr undef, align 8
br i1 true, label %9, label %17
9:
invoke void @f0()
to label %10 unwind label %1
10:
invoke void @f2()
to label %11 unwind label %1
11:
%12 = invoke signext i32 undef(ptr null, i32 signext undef, i1 zeroext undef)
to label %13 unwind label %14
13:
unreachable
14:
%15 = landingpad { ptr, i32 }
catch ptr @g
catch ptr null
br label %16
16:
unreachable
17:
ret void
; uselistorder directives
uselistorder ptr @f0, { 1, 0 }
uselistorder label %1, { 0, 3, 1, 2 }
}