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

33 lines
868 B
LLVM

; RUN: opt -S -passes=deadargelim %s | FileCheck %s
define internal { i64, i64 } @f(i64 %a, i64 %b) {
start:
%0 = insertvalue { i64, i64 } undef, i64 %a, 0
%1 = insertvalue { i64, i64 } %0, i64 %b, 1
ret { i64, i64 } %1
}
; Check that we don't delete either of g's return values
; CHECK-LABEL: define internal { i64, i64 } @g(i64 %a, i64 %b)
define internal { i64, i64 } @g(i64 %a, i64 %b) {
start:
%0 = call { i64, i64 } @f(i64 %a, i64 %b)
ret { i64, i64 } %0
}
declare dso_local i32 @test(i64, i64)
define i32 @main(i32 %argc, ptr %argv) {
start:
%x = call { i64, i64 } @g(i64 13, i64 42)
%x.0 = extractvalue { i64, i64 } %x, 0
%x.1 = extractvalue { i64, i64 } %x, 1
%z = bitcast i64 %x.0 to i64
%y = call { i64, i64 } @f(i64 %x.0, i64 %x.1)
%y.1 = extractvalue { i64, i64 } %y, 1
%0 = call i32 @test(i64 %x.0, i64 %y.1)
ret i32 %0
}