llvm-6502/test/CodeGen/X86/shl_elim.ll

14 lines
573 B
LLVM
Raw Normal View History

; RUN: llc < %s -march=x86 | grep "movl 8(.esp), %eax"
; RUN: llc < %s -march=x86 | grep "shrl .eax"
; RUN: llc < %s -march=x86 | grep "movswl .ax, .eax"
define i32 @test1(i64 %a) nounwind {
%tmp29 = lshr i64 %a, 24 ; <i64> [#uses=1]
%tmp23 = trunc i64 %tmp29 to i32 ; <i32> [#uses=1]
%tmp410 = lshr i32 %tmp23, 9 ; <i32> [#uses=1]
%tmp45 = trunc i32 %tmp410 to i16 ; <i16> [#uses=1]
%tmp456 = sext i16 %tmp45 to i32 ; <i32> [#uses=1]
ret i32 %tmp456
}