fdfe411e7c
SUMMARY:
SUMMARY
for a source file "test.c"
void foo() {};
llc will generate assembly code as (assembly patch)
.globl foo
.globl .foo
.csect foo[DS]
foo:
.long .foo
.long TOC[TC0]
.long 0
and symbol table as (xcoff object file)
[4] m 0x00000004 .data 1 unamex foo
[5] a4 0x0000000c 0 0 SD DS 0 0
[6] m 0x00000004 .data 1 extern foo
[7] a4 0x00000004 0 0 LD DS 0 0
After first patch, the assembly will be as
.globl foo[DS] # -- Begin function foo
.globl .foo
.align 2
.csect foo[DS]
.long .foo
.long TOC[TC0]
.long 0
and symbol table will as
[6] m 0x00000004 .data 1 extern foo
[7] a4 0x00000004 0 0 DS DS 0 0
Change the code for the assembly path and xcoff objectfile patch for llc.
Reviewers: Jason Liu
Subscribers: wuzish, nemanjai, hiraditya
Differential Revision: https://reviews.llvm.org/D76162
72 lines
1.5 KiB
LLVM
72 lines
1.5 KiB
LLVM
; RUN: llc -mtriple powerpc-ibm-aix-xcoff < %s | \
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; RUN: FileCheck --check-prefixes=CHECK,32BIT %s
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; RUN: llc -mtriple powerpc64-ibm-aix-xcoff < %s | \
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; RUN: FileCheck --check-prefixes=CHECK,64BIT %s
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define i32 @foo() {
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entry:
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ret i32 3
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}
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define i32 @main() {
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entry:
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%0 = call i32 @foo()
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%1 = call i32 bitcast (i32 (...)* @extern_foo to i32 ()*)()
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%2 = call i32 @static_foo()
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%3 = add nsw i32 %0, %1
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%4 = add nsw i32 %3, %2
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ret i32 %4
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}
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declare i32 @extern_foo(...)
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define internal i32 @static_foo() {
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entry:
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ret i32 3
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}
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; CHECK: .globl foo[DS]
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; CHECK: .globl .foo
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; CHECK: .csect foo[DS]
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; 32BIT: .long .foo
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; 32BIT-NEXT: .long TOC[TC0]
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; 32BIT-NEXT: .long 0
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; 64BIT: .llong .foo
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; 64BIT-NEXT: .llong TOC[TC0]
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; 64BIT-NEXT: .llong 0
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; CHECK-NEXT: .csect .text[PR]
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; CHECK-LABEL: .foo:
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; CHECK: .globl main[DS]
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; CHECK: .globl .main
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; CHECK: .csect main[DS]
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; 32BIT: .long .main
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; 32BIT-NEXT: .long TOC[TC0]
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; 32BIT-NEXT: .long 0
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; 64BIT: .llong .main
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; 64BIT-NEXT: .llong TOC[TC0]
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; 64BIT-NEXT: .llong 0
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; CHECK-NEXT: .csect .text[PR]
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; CHECK-LABEL: .main:
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; CHECK: bl .foo
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; CHECK: bl .extern_foo
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; CHECK: bl .static_foo
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; CHECK: .lglobl .static_foo
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; CHECK: .csect static_foo[DS]
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; 32BIT: .long .static_foo
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; 32BIT-NEXT: .long TOC[TC0]
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; 32BIT-NEXT: .long 0
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; 64BIT: .llong .static_foo
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; 64BIT-NEXT: .llong TOC[TC0]
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; 64BIT-NEXT: .llong 0
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; CHECK-NEXT: .csect .text[PR]
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; CHECK-LABEL: .static_foo:
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; CHECK-NOT: .csect extern_foo
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; CHECK: .toc
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; CHECK-NOT: .tc
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