5d6d8dcd29
D33412/D33413 introduced this to support a clang pragma to set section names for a symbol depending on if it would be placed in bss/data/rodata/text, which may not be known until the backend. However, for text we know that only functions will go there, so just directly set the section in clang instead of going through a completely separate attribute. Autoupgrade the "implicit-section-name" attribute to directly setting the section on a Fuction.
55 lines
2.1 KiB
LLVM
55 lines
2.1 KiB
LLVM
;; Tests for basic block sections applied on a function in a custom section.
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=all | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=all | FileCheck %s
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; RUN: echo "!_Z3fooi" > %t1.list.txt
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; RUN: echo "!!2" >> %t1.list.txt
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t1.list.txt | FileCheck %s --check-prefix=LIST1
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t1.list.txt | FileCheck %s --check-prefix=LIST1
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; RUN: echo "!_Z3fooi" > %t2.list.txt
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; RUN: echo "!!0" >> %t2.list.txt
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t2.list.txt | FileCheck %s --check-prefix=LIST2
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t2.list.txt | FileCheck %s --check-prefix=LIST2
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; CHECK: .section foo_section,"ax",@progbits,unique,1
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; CHECK-LABEL: _Z3fooi:
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; CHECK: .section foo_section,"ax",@progbits,unique,2
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; CHECK-NEXT: _Z3fooi.__part.1:
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; CHECK: .section foo_section,"ax",@progbits,unique,3
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; CHECK-NEXT: _Z3fooi.__part.2:
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; LIST1: .section foo_section,"ax",@progbits,unique,1
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; LIST1-LABEL: _Z3fooi:
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; LIST1: .section foo_section,"ax",@progbits,unique,2
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; LIST1-NEXT: _Z3fooi.__part.0:
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; LIST1-NOT: .section foo_section,"ax",@progbits,unique,3
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; LIST2: .section foo_section,"ax",@progbits,unique,1
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; LIST2-LABEL: _Z3fooi:
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; LIST2: .section foo_section,"ax",@progbits,unique,2
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; LIST2-NEXT: _Z3fooi.cold:
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; LIST2-NOT: .section foo_section,"ax",@progbits,unique,3
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;; Source to generate the IR:
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;; #pragma clang section text = "foo_section"
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;; int foo(int n) {
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;; if (n < 0)
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;; exit(-1);
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;; return 0;
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;; }
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define dso_local i32 @_Z3fooi(i32 %n) local_unnamed_addr section "foo_section" {
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entry:
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%cmp = icmp slt i32 %n, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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tail call void @exit(i32 -1) #2
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unreachable
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if.end: ; preds = %entry
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ret i32 0
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}
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declare dso_local void @exit(i32) local_unnamed_addr
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