44 lines
1.5 KiB
LLVM
44 lines
1.5 KiB
LLVM
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; COM: Tests to verify that the entry basic block is always placed at the beginning of its section.
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; RUN: echo 'v1' > %t1
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; RUN: echo 'f foo' >> %t1
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; RUN: echo 'c2 0' >> %t1
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t1 -O0 | FileCheck %s -check-prefix=LINUX-SECTIONS1
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; RUN: echo 'v1' > %t2
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; RUN: echo 'f foo' >> %t2
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; RUN: echo 'c2' >> %t2
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t2 -O0 | FileCheck %s -check-prefix=LINUX-SECTIONS2
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define void @foo(i1 %a, i1 %b) {
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b0:
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br i1 %a, label %b1, label %b2
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b1: ; preds = %b0
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ret void
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b2: ; preds = %b0
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ret void
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}
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;; Check that %b0 is emitted at the beginning of the function.
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; LINUX-SECTIONS1: .section .text.foo,"ax",@progbits
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; LINUX-SECTIONS1: foo:
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; LINUX-SECTIONS1: # %bb.0: # %b0
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; LINUX-SECTIONS1: jne foo.cold
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; LINUX-SECTIONS1: # %bb.2: # %b2
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; LINUX-SECTIONS1: retq
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; LINUX-SECTIONS1: .section .text.split.foo,"ax",@progbits
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; LINUX-SECTIONS1: foo.cold: # %b1
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; LINUX-SECTIONS1: retq
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; LINUX-SECTIONS2: .section .text.foo,"ax",@progbits
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; LINUX-SECTIONS2: foo:
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; LINUX-SECTIONS2: # %bb.0: # %b0
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; LINUX-SECTIONS2: je foo.__part.0
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; LINUX-SECTIONS2: # %bb.1: # %b1
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; LINUX-SECTIONS2: retq
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; LINUX-SECTIONS2: .section .text.foo,"ax",@progbits
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; LINUX-SECTIONS2: foo.__part.0: # %b2
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; LINUX-SECTIONS2: retq
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