llvm-project/llvm/test/Transforms/CodeGenPrepare/AArch64/trunc-weird-user.ll

37 lines
961 B
LLVM

; RUN: opt -S -codegenprepare -mtriple=arm64-apple-ios7.0 %s | FileCheck %s
%foo = type { i8 }
define %foo @test_merge(i32 %in) {
; CHECK-LABEL: @test_merge
; CodeGenPrepare was requesting the EVT for { i8 } to determine
; whether the insertvalue user of the trunc was legal. This
; asserted.
; CHECK: insertvalue %foo undef, i8 %byte, 0
%lobit = lshr i32 %in, 31
%byte = trunc i32 %lobit to i8
%struct = insertvalue %foo undef, i8 %byte, 0
ret %"foo" %struct
}
define i64* @test_merge_PR21548(i32 %a, i64* %p1, i64* %p2, i64* %p3) {
; CHECK-LABEL: @test_merge_PR21548
%as = lshr i32 %a, 3
%Tr = trunc i32 %as to i1
br i1 %Tr, label %BB2, label %BB3
BB2:
; Similarly to above:
; CodeGenPrepare was requesting the EVT for i8* to determine
; whether the select user of the trunc was legal. This asserted.
; CHECK: select i1 {{%.*}}, i64* %p1, i64* %p2
%p = select i1 %Tr, i64* %p1, i64* %p2
ret i64* %p
BB3:
ret i64* %p3
}