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TheRock/compiler/amd-llvm/llvm/test/CodeGen/PowerPC/splitstore-check-volatile.ll
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18 lines
495 B
LLVM

; Test that CodeGenPrepare respect the volatile flag when splitting a store.
;
; RUN: opt -S -mtriple=powerpc64le -codegenprepare -force-split-store < %s | FileCheck %s
define void @fun(ptr %Src, ptr %Dst) {
; CHECK: store volatile i16 %8, ptr %Dst
%1 = load i16, ptr %Src
%2 = trunc i16 %1 to i8
%3 = lshr i16 %1, 8
%4 = trunc i16 %3 to i8
%5 = zext i8 %2 to i16
%6 = zext i8 %4 to i16
%7 = shl nuw i16 %6, 8
%8 = or i16 %7, %5
store volatile i16 %8, ptr %Dst
ret void
}