forked from OSchip/llvm-project
95 lines
3.3 KiB
LLVM
95 lines
3.3 KiB
LLVM
; RUN: llc -mtriple=x86_64-linux -o - %s | FileCheck %s
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%0 = type { %1, %3* }
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%1 = type { %2* }
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%2 = type { %2*, i8* }
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%3 = type { i32, i32 (i32, i32)* }
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declare i32 @Up(...)
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declare i32 @f(i32, i32)
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; check loop block_14 is not merged with block_21
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; check loop block_11 is not merged with block_18, block_25
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define i32 @foo(%0* nocapture readonly, i32, i1 %c, i8* %p1, %2** %p2) {
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; CHECK-LABEL: foo:
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; CHECK: # %block_11
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; CHECK-NEXT: movq (%r14), %rax
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; CHECK-NEXT: testq %rax, %rax
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; CHECK-NEXT: je
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; CHECK-NEXT:# %block_14
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; CHECK-NEXT: cmpq $0, 8(%rax)
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; CHECK-NEXT: jne
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; CHECK-NEXT:# %block_18
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; CHECK-NEXT: movq (%r14), %rax
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; CHECK-NEXT: testq %rax, %rax
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; CHECK-NEXT: je
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; CHECK-NEXT:# %block_21
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; CHECK-NEXT:# =>This Inner Loop Header
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; CHECK-NEXT: cmpq $0, 8(%rax)
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; CHECK-NEXT: jne
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; CHECK-NEXT:# %block_25
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; CHECK-NEXT:# in Loop
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; CHECK-NEXT: movq (%r14), %rax
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; CHECK-NEXT: testq %rax, %rax
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; CHECK-NEXT: jne
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br i1 %c, label %block_34, label %block_3
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block_3: ; preds = %2
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br i1 %c, label %block_7, label %block_4
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block_4: ; preds = %block_3
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%a5 = tail call i32 @f(i32 undef, i32 undef)
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%a6 = icmp eq i32 %a5, 0
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br i1 %a6, label %block_7, label %block_34
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block_7: ; preds = %block_4, %block_3
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%a8 = icmp eq %2* null, null
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br i1 %a8, label %block_34, label %block_9
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block_9: ; preds = %block_7
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%a10 = icmp eq i8* %p1, null
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br i1 %a10, label %block_11, label %block_32
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block_11: ; preds = %block_9
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%a12 = load %2*, %2** %p2, align 8
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%a13 = icmp eq %2* %a12, null
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br i1 %a13, label %block_34, label %block_14
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block_14: ; preds = %block_11
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%a15 = getelementptr inbounds %2, %2* %a12, i64 0, i32 1
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%a16 = load i8*, i8** %a15, align 8
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%a17 = icmp eq i8* %a16, null
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br i1 %a17, label %block_18, label %block_32
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block_18: ; preds = %block_14
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%a19 = load %2*, %2** %p2, align 8
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%a20 = icmp eq %2* %a19, null
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br i1 %a20, label %block_34, label %block_21
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block_21: ; preds = %block_18
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%a22 = getelementptr inbounds %2, %2* %a19, i64 0, i32 1
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%a23 = load i8*, i8** %a22, align 8
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%a24 = icmp eq i8* %a23, null
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br i1 %a24, label %block_25, label %block_32
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block_25: ; preds = %block_28, %block_21
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%a26 = load %2*, %2** %p2, align 8
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%a27 = icmp eq %2* %a26, null
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br i1 %a27, label %block_34, label %block_28
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block_28: ; preds = %block_25
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%a29 = getelementptr inbounds %2, %2* %a26, i64 0, i32 1
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%a30 = load i8*, i8** %a29, align 8
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%a31 = icmp eq i8* %a30, null
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br i1 %a31, label %block_25, label %block_32
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block_32: ; preds = %block_28, %block_21, %block_14, %block_9
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%a33 = tail call i32 (...) @Up()
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br label %block_34
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block_34: ; preds = %block_32, %block_25, %block_18, %block_11, %block_7, %block_4, %2
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%a35 = phi i32 [ 0, %2 ], [ %a5, %block_4 ], [ 0, %block_7 ], [ 0, %block_11 ], [ 0, %block_32 ], [ 0, %block_18 ], [ 0, %block_25 ]
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ret i32 %a35
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}
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