34e70d722d
Every basic block section symbol created by -fbasic-block-sections will contain ".__part." to know that this symbol corresponds to a basic block fragment of the function. This patch solves two problems: a) Like D89617, we want function symbols with suffixes to be properly qualified so that external tools like profile aggregators know exactly what this symbol corresponds to. b) The current basic block naming just adds a ".N" to the symbol name where N is some integer. This collides with how clang creates __cxx_global_var_init.N. clang creates these symbol names to call constructor functions and basic block symbol naming should not use the same style. Fixed all the test cases and added an extra test for __cxx_global_var_init breakage. Differential Revision: https://reviews.llvm.org/D93082
87 lines
2.5 KiB
LLVM
87 lines
2.5 KiB
LLVM
; RUN: llc -O0 %s --basic-block-sections=all -mtriple=x86_64 -filetype=asm --frame-pointer=all -o - | FileCheck --check-prefix=SECTIONS_CFI %s
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; RUN: llc -O0 %s --basic-block-sections=all -mtriple=x86_64 -filetype=asm --frame-pointer=none -o - | FileCheck --check-prefix=SECTIONS_NOFP_CFI %s
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; RUN: llc -O0 %s --basic-block-sections=all -mtriple=x86_64 -filetype=obj --frame-pointer=all -o - | llvm-dwarfdump --eh-frame - | FileCheck --check-prefix=EH_FRAME %s
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;; void f1();
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;; void f3(bool b) {
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;; if (b)
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;; f1();
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;; }
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; SECTIONS_CFI: _Z2f3b:
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; SECTIONS_CFI: .cfi_startproc
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; SECTIONS_CFI: .cfi_def_cfa_offset 16
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; SECTIONS_CFI: .cfi_offset %rbp, -16
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; SECTIONS_CFI: .cfi_def_cfa_register %rbp
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; SECTIONS_CFI: .cfi_endproc
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; SECTIONS_CFI: _Z2f3b.__part.1:
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; SECTIONS_CFI-NEXT: .cfi_startproc
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; SECTIONS_CFI-NEXT: .cfi_def_cfa %rbp, 16
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; SECTIONS_CFI-NEXT: .cfi_offset %rbp, -16
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; SECTIONS_CFI: .cfi_endproc
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; SECTIONS_CFI: _Z2f3b.__part.2:
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; SECTIONS_CFI-NEXT: .cfi_startproc
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; SECTIONS_CFI-NEXT: .cfi_def_cfa %rbp, 16
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; SECTIONS_CFI-NEXT: .cfi_offset %rbp, -16
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; SECTIONS_CFI: .cfi_def_cfa
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; SECTIONS_CFI: .cfi_endproc
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; SECTIONS_NOFP_CFI: _Z2f3b:
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; SECTIONS_NOFP_CFI: .cfi_startproc
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; SECTIONS_NOFP_CFI: .cfi_def_cfa_offset 16
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; SECTIONS_NOFP_CFI: .cfi_endproc
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; SECTIONS_NOFP_CFI: _Z2f3b.__part.1:
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; SECTIONS_NOFP_CFI-NEXT: .cfi_startproc
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; SECTIONS_NOFP_CFI-NEXT: .cfi_def_cfa %rsp, 16
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; SECTIONS_NOFP_CFI: .cfi_endproc
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; SECTIONS_NOFP_CFI: _Z2f3b.__part.2:
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; SECTIONS_NOFP_CFI-NEXT: .cfi_startproc
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; SECTIONS_NOFP_CFI-NEXT: .cfi_def_cfa %rsp, 16
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; SECTIONS_NOFP_CFI: .cfi_endproc
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;; There must be 1 CIE and 3 FDEs.
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; EH_FRAME: CIE
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; EH_FRAME: DW_CFA_def_cfa
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; EH_FRAME: DW_CFA_offset
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; EH_FRAME: FDE cie=
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; EH_FRAME: DW_CFA_def_cfa_offset
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; EH_FRAME: DW_CFA_offset
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; EH_FRAME: DW_CFA_def_cfa_register
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; EH_FRAME: FDE cie=
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; EH_FRAME: DW_CFA_def_cfa
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; EH_FRAME: DW_CFA_offset
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; EH_FRAME: FDE cie=
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; EH_FRAME: DW_CFA_def_cfa
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; EH_FRAME: DW_CFA_offset
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; Function Attrs: noinline optnone uwtable
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define dso_local void @_Z2f3b(i1 zeroext %b) {
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entry:
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%b.addr = alloca i8, align 1
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%frombool = zext i1 %b to i8
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store i8 %frombool, i8* %b.addr, align 1
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%0 = load i8, i8* %b.addr, align 1
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%tobool = trunc i8 %0 to i1
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br i1 %tobool, label %if.then, label %if.end
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if.then: ; preds = %entry
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call void @_Z2f1v()
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br label %if.end
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if.end: ; preds = %if.then, %entry
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ret void
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}
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declare dso_local void @_Z2f1v()
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