6ac71a0149
This patch introduces a new version for the basic block sections profile as was requested in D158442, while keeping backward compatibility for the old version. The new encoding is as follows: ``` m <module_name> f <function_name_1> <function_name_2>... c <bb_id_1> <bb_id_2> <bb_id_3> c <bb_id_4> <bb_id_5> ... ``` Module name specifier (starting with 'm') is optional and allows distinguishing profiles for internal-linkage functions with the same name. If not specified, profile will be applied to any function with the same name. Function name specifier (starting with 'f') can specify multiple function name aliases. Finally, basic block clusters are specified by 'c' and specify the cluster of basic blocks, and the internal order in which they must be placed in the same section.
86 lines
3.6 KiB
LLVM
86 lines
3.6 KiB
LLVM
;; Check the basic block sections list option.
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;; version 0 profile:
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; RUN: echo '!_Z3foob' > %t1
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;;
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;; version 1 profile:
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; RUN: echo 'v1' > %t2
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; RUN: echo 'f _Z3foob' >> %t2
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;;
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t1 -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS --check-prefix=LINUX-SECTIONS-FUNCTION-SECTION
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t1 -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS --check-prefix=LINUX-SECTIONS-NO-FUNCTION-SECTION
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t1 -unique-basic-block-section-names --bbsections-guided-section-prefix=false | FileCheck %s -check-prefix=LINUX-SECTIONS-NO-GUIDED-PREFIX
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; RUN: llc < %s -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t2 -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS --check-prefix=LINUX-SECTIONS-FUNCTION-SECTION
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t2 -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS --check-prefix=LINUX-SECTIONS-NO-FUNCTION-SECTION
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; RUN: llc < %s -mtriple=x86_64-pc-linux -basic-block-sections=%t2 -unique-basic-block-section-names --bbsections-guided-section-prefix=false | FileCheck %s -check-prefix=LINUX-SECTIONS-NO-GUIDED-PREFIX
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define i32 @_Z3foob(i1 zeroext %0) nounwind {
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%2 = alloca i32, align 4
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%3 = alloca i8, align 1
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%4 = zext i1 %0 to i8
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store i8 %4, ptr %3, align 1
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%5 = load i8, ptr %3, align 1
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%6 = trunc i8 %5 to i1
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%7 = zext i1 %6 to i32
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%8 = icmp sgt i32 %7, 0
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br i1 %8, label %9, label %11
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9: ; preds = %1
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%10 = call i32 @_Z3barv()
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store i32 %10, ptr %2, align 4
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br label %13
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11: ; preds = %1
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%12 = call i32 @_Z3bazv()
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store i32 %12, ptr %2, align 4
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br label %13
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13: ; preds = %11, %9
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%14 = load i32, ptr %2, align 4
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ret i32 %14
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}
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declare i32 @_Z3barv() #1
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declare i32 @_Z3bazv() #1
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define i32 @_Z3zipb(i1 zeroext %0) nounwind {
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%2 = alloca i32, align 4
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%3 = alloca i8, align 1
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%4 = zext i1 %0 to i8
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store i8 %4, ptr %3, align 1
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%5 = load i8, ptr %3, align 1
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%6 = trunc i8 %5 to i1
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%7 = zext i1 %6 to i32
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%8 = icmp sgt i32 %7, 0
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br i1 %8, label %9, label %11
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9: ; preds = %1
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%10 = call i32 @_Z3barv()
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store i32 %10, ptr %2, align 4
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br label %13
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11: ; preds = %1
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%12 = call i32 @_Z3bazv()
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store i32 %12, ptr %2, align 4
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br label %13
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13: ; preds = %11, %9
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%14 = load i32, ptr %2, align 4
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ret i32 %14
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}
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; LINUX-SECTIONS-NO-GUIDED-PREFIX: .section .text._Z3foob,"ax",@progbits
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; LINUX-SECTIONS: .section .text.hot._Z3foob,"ax",@progbits
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; LINUX-SECTIONS: _Z3foob:
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; LINUX-SECTIONS: .section .text.hot._Z3foob._Z3foob.__part.1,"ax",@progbits
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; LINUX-SECTIONS: _Z3foob.__part.1:
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; LINUX-SECTIONS: .section .text.hot._Z3foob._Z3foob.__part.2,"ax",@progbits
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; LINUX-SECTIONS: _Z3foob.__part.2:
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; LINUX-SECTIONS: .section .text.hot._Z3foob._Z3foob.__part.3,"ax",@progbits
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; LINUX-SECTIONS: _Z3foob.__part.3:
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; LINUX-SECTIONS-FUNCTION-SECTION: .section .text._Z3zipb,"ax",@progbits
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; LINUX-SECTIONS-NO-FUNCTION-SECTION-NOT: .section .text{{.*}}._Z3zipb,"ax",@progbits
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; LINUX-SECTIONS: _Z3zipb:
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; LINUX-SECTIONS-NOT: .section .text{{.*}}._Z3zipb.__part.{{[0-9]+}},"ax",@progbits
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; LINUX-SECTIONS-NOT: _Z3zipb.__part.{{[0-9]+}}:
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