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

19 lines
706 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
define i32 @test1(i64 %a) nounwind {
; CHECK-LABEL: test1:
; CHECK: # %bb.0:
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: shrl %eax
; CHECK-NEXT: cwtl
; CHECK-NEXT: retl
%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
}