103 lines
3.3 KiB
LLVM
103 lines
3.3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mcpu=generic -mtriple=i686-- | FileCheck %s
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%struct._obstack_chunk = type { i8*, %struct._obstack_chunk*, [4 x i8] }
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%struct.obstack = type { i32, %struct._obstack_chunk*, i8*, i8*, i8*, i32, i32, %struct._obstack_chunk* (...)*, void (...)*, i8*, i8 }
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@stmt_obstack = external dso_local global %struct.obstack ; <%struct.obstack*> [#uses=1]
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; This should just not crash.
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define void @test1() nounwind {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testb $1, stmt_obstack+40
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; CHECK-NEXT: jne .LBB0_1
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; CHECK-NEXT: # %bb.2: # %cond_false30.i
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; CHECK-NEXT: pushl $0
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; CHECK-NEXT: calll 0
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; CHECK-NEXT: addl $4, %esp
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; CHECK-NEXT: retl
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; CHECK-NEXT: .LBB0_1: # %cond_true23.i
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; CHECK-NEXT: retl
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entry:
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br i1 true, label %cond_true, label %cond_next
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cond_true: ; preds = %entry
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%new_size.0.i = select i1 false, i32 0, i32 0 ; <i32> [#uses=1]
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%tmp.i = load i32, i32* bitcast (i8* getelementptr (%struct.obstack, %struct.obstack* @stmt_obstack, i32 0, i32 10) to i32*) ; <i32> [#uses=1]
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%tmp.i.upgrd.1 = trunc i32 %tmp.i to i8 ; <i8> [#uses=1]
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%tmp21.i = and i8 %tmp.i.upgrd.1, 1 ; <i8> [#uses=1]
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%tmp22.i = icmp eq i8 %tmp21.i, 0 ; <i1> [#uses=1]
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br i1 %tmp22.i, label %cond_false30.i, label %cond_true23.i
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cond_true23.i: ; preds = %cond_true
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ret void
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cond_false30.i: ; preds = %cond_true
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%tmp35.i = tail call %struct._obstack_chunk* null( i32 %new_size.0.i ) ; <%struct._obstack_chunk*> [#uses=0]
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ret void
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cond_next: ; preds = %entry
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ret void
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}
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define i32 @test2(i16* %P, i16* %Q) nounwind {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movzwl (%eax), %edx
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; CHECK-NEXT: movzbl %dl, %eax
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; CHECK-NEXT: movw %dx, (%ecx)
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; CHECK-NEXT: retl
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%A = load i16, i16* %P, align 4 ; <i16> [#uses=11]
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%C = zext i16 %A to i32 ; <i32> [#uses=1]
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%D = and i32 %C, 255 ; <i32> [#uses=1]
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br label %L
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L:
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store i16 %A, i16* %Q
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ret i32 %D
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}
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; rdar://10554090
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; xor in exit block will be CSE'ed and load will be folded to xor in entry.
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define i1 @test3(i32* %P, i32* %Q) nounwind {
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; CHECK-LABEL: test3:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; CHECK-NEXT: movl (%eax), %eax
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; CHECK-NEXT: xorl (%ecx), %eax
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; CHECK-NEXT: testl $89947, %eax # imm = 0x15F5B
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; CHECK-NEXT: je .LBB2_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: # kill: def $al killed $al killed $eax
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; CHECK-NEXT: retl
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; CHECK-NEXT: .LBB2_2: # %exit
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; CHECK-NEXT: testl $-838178173, %eax # imm = 0xCE0A6A83
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: # kill: def $al killed $al killed $eax
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; CHECK-NEXT: retl
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entry:
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%0 = load i32, i32* %P, align 4
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%1 = load i32, i32* %Q, align 4
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%2 = xor i32 %0, %1
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%3 = and i32 %2, 89947
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%4 = icmp eq i32 %3, 0
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br i1 %4, label %exit, label %land.end
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exit:
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%shr.i.i19 = xor i32 %1, %0
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%5 = and i32 %shr.i.i19, 3456789123
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%6 = icmp eq i32 %5, 0
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br label %land.end
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land.end:
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%7 = phi i1 [ %6, %exit ], [ false, %entry ]
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ret i1 %7
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}
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