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[x86] auto-generate checks 

llvm-svn: 284393
This commit is contained in:
Sanjay Patel 2016-10-17 15:38:41 +00:00
parent 50fd615f54
commit 832962110a
1 changed files with 17 additions and 0 deletions
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17
llvm/test/CodeGen/X86/sar_fold64.ll
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@ -1,9 +1,14 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
define i32 @shl48sar47(i64 %a) #0 {
; CHECK-LABEL: shl48sar47:
; CHECK: # BB#0:
; CHECK-NEXT: movswq %di, %rax
; CHECK-NEXT: addl %eax, %eax
; CHECK-NEXT: # kill: %EAX<def> %EAX<kill> %RAX<kill>
; CHECK-NEXT: retq
;
%1 = shl i64 %a, 48
%2 = ashr exact i64 %1, 47
%3 = trunc i64 %2 to i32
@ -14,6 +19,10 @@ define i32 @shl48sar49(i64 %a) #0 {
; CHECK-LABEL: shl48sar49:
; CHECK: # BB#0:
; CHECK-NEXT: movswq %di, %rax
; CHECK-NEXT: shrq %rax
; CHECK-NEXT: # kill: %EAX<def> %EAX<kill> %RAX<kill>
; CHECK-NEXT: retq
;
%1 = shl i64 %a, 48
%2 = ashr exact i64 %1, 49
%3 = trunc i64 %2 to i32
@ -24,6 +33,10 @@ define i32 @shl56sar55(i64 %a) #0 {
; CHECK-LABEL: shl56sar55:
; CHECK: # BB#0:
; CHECK-NEXT: movsbq %dil, %rax
; CHECK-NEXT: addl %eax, %eax
; CHECK-NEXT: # kill: %EAX<def> %EAX<kill> %RAX<kill>
; CHECK-NEXT: retq
;
%1 = shl i64 %a, 56
%2 = ashr exact i64 %1, 55
%3 = trunc i64 %2 to i32
@ -34,6 +47,10 @@ define i32 @shl56sar57(i64 %a) #0 {
; CHECK-LABEL: shl56sar57:
; CHECK: # BB#0:
; CHECK-NEXT: movsbq %dil, %rax
; CHECK-NEXT: shrq %rax
; CHECK-NEXT: # kill: %EAX<def> %EAX<kill> %RAX<kill>
; CHECK-NEXT: retq
;
%1 = shl i64 %a, 56
%2 = ashr exact i64 %1, 57
%3 = trunc i64 %2 to i32