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[X86] Autogenerate complete checks. NFC

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llvm-svn: 349314
This commit is contained in:
Craig Topper 2018-12-16 18:35:54 +00:00
parent fe418b91a7
commit 1e076b5b0e
1 changed files with 36 additions and 7 deletions
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43
test/CodeGen/X86/fold-load.ll
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@ -1,3 +1,4 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mcpu=generic -mtriple=i686-- | FileCheck %s
%struct._obstack_chunk = type { i8*, %struct._obstack_chunk*, [4 x i8] }
%struct.obstack = type { i32, %struct._obstack_chunk*, i8*, i8*, i8*, i32, i32, %struct._obstack_chunk* (...)*, void (...)*, i8*, i8 }
@ -5,6 +6,17 @@
; This should just not crash.
define void @test1() nounwind {
; CHECK-LABEL: test1:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: testb $1, stmt_obstack+40
; CHECK-NEXT: jne .LBB0_1
; CHECK-NEXT: # %bb.2: # %cond_false30.i
; CHECK-NEXT: pushl $0
; CHECK-NEXT: calll 0
; CHECK-NEXT: addl $4, %esp
; CHECK-NEXT: retl
; CHECK-NEXT: .LBB0_1: # %cond_true23.i
; CHECK-NEXT: retl
entry:
br i1 true, label %cond_true, label %cond_next
@ -30,6 +42,14 @@ cond_next: ; preds = %entry
define i32 @test2(i16* %P, i16* %Q) nounwind {
; CHECK-LABEL: test2:
; CHECK: # %bb.0:
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: movzwl (%eax), %edx
; CHECK-NEXT: movzbl %dl, %eax
; CHECK-NEXT: movw %dx, (%ecx)
; CHECK-NEXT: retl
%A = load i16, i16* %P, align 4 ; <i16> [#uses=11]
%C = zext i16 %A to i32 ; <i32> [#uses=1]
%D = and i32 %C, 255 ; <i32> [#uses=1]
@ -39,9 +59,6 @@ L:
store i16 %A, i16* %Q
ret i32 %D
; CHECK-LABEL: test2:
; CHECK: movl 4(%esp), %eax
; CHECK-NEXT: movzwl (%eax), %e{{..}}
}
@ -49,10 +66,22 @@ L:
; xor in exit block will be CSE'ed and load will be folded to xor in entry.
define i1 @test3(i32* %P, i32* %Q) nounwind {
; CHECK-LABEL: test3:
; CHECK: movl 8(%esp), %e
; CHECK: movl 4(%esp), %e
; CHECK: xorl (%e
; CHECK: j
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
; CHECK-NEXT: movl (%eax), %eax
; CHECK-NEXT: xorl (%ecx), %eax
; CHECK-NEXT: testl $89947, %eax # imm = 0x15F5B
; CHECK-NEXT: je .LBB2_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retl
; CHECK-NEXT: .LBB2_2: # %exit
; CHECK-NEXT: testl $-838178173, %eax # imm = 0xCE0A6A83
; CHECK-NEXT: sete %al
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retl
entry:
%0 = load i32, i32* %P, align 4
%1 = load i32, i32* %Q, align 4