llvm-project/llvm/test/CodeGen/PowerPC/test_func_desc.ll
David Tenty d20fdcabf8 [AIX] Update data directives for AIX assembly
Summary:
The standard data emission directives (e.g. .short, .long) in the AIX assembler
have the unintended consequence of aligning their output to the natural byte
boundary. This cause problems because we aren't expecting behavior from the
Data*bitsDirectives, so the final alignment of data isn't correct in some cases
on AIX.

This patch updated the Data*bitsDirectives to use .vbyte pseudo-ops instead to emit the
data, since we will emit the .align directives as needed. We update the existing
testcases and add a test for emission of struct data.

Reviewers: hubert.reinterpretcast, Xiangling_L, jasonliu

Reviewed By: hubert.reinterpretcast, jasonliu

Subscribers: wuzish, nemanjai, hiraditya, kbarton, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80934
2020-06-03 10:55:59 -04:00

75 lines
1.6 KiB
LLVM

; RUN: llc -mtriple powerpc-ibm-aix-xcoff < %s | \
; RUN: FileCheck --check-prefixes=CHECK,32BIT %s
; RUN: llc -mtriple powerpc64-ibm-aix-xcoff < %s | \
; RUN: FileCheck --check-prefixes=CHECK,64BIT %s
define i32 @foo() {
entry:
ret i32 3
}
define i32 @main() {
entry:
%0 = call i32 @foo()
%1 = call i32 bitcast (i32 (...)* @extern_foo to i32 ()*)()
%2 = call i32 @static_foo()
%3 = add nsw i32 %0, %1
%4 = add nsw i32 %3, %2
ret i32 %4
}
declare i32 @extern_foo(...)
define internal i32 @static_foo() {
entry:
ret i32 3
}
; CHECK: .globl foo[DS]
; CHECK: .globl .foo
; 32BIT: .csect foo[DS],2
; 32BIT-NEXT: .vbyte 4, .foo
; 32BIT-NEXT: .vbyte 4, TOC[TC0]
; 32BIT-NEXT: .vbyte 4, 0
; 64BIT: .csect foo[DS],3
; 64BIT-NEXT: .vbyte 8, .foo
; 64BIT-NEXT: .vbyte 8, TOC[TC0]
; 64BIT-NEXT: .vbyte 8, 0
; CHECK-NEXT: .csect .text[PR],2
; CHECK-LABEL: .foo:
; CHECK: .globl main[DS]
; CHECK: .globl .main
; 32BIT: .csect main[DS],2
; 32BIT-NEXT: .vbyte 4, .main
; 32BIT-NEXT: .vbyte 4, TOC[TC0]
; 32BIT-NEXT: .vbyte 4, 0
; 64BIT: .csect main[DS],3
; 64BIT-NEXT: .vbyte 8, .main
; 64BIT-NEXT: .vbyte 8, TOC[TC0]
; 64BIT-NEXT: .vbyte 8, 0
; CHECK-NEXT: .csect .text[PR],2
; CHECK-LABEL: .main:
; CHECK: bl .foo
; CHECK: bl .extern_foo
; CHECK: bl .static_foo
; CHECK: .lglobl .static_foo
; 32BIT: .csect static_foo[DS],2
; 32BIT-NEXT: .vbyte 4, .static_foo
; 32BIT-NEXT: .vbyte 4, TOC[TC0]
; 32BIT-NEXT: .vbyte 4, 0
; 64BIT: .csect static_foo[DS],3
; 64BIT-NEXT: .vbyte 8, .static_foo
; 64BIT-NEXT: .vbyte 8, TOC[TC0]
; 64BIT-NEXT: .vbyte 8, 0
; CHECK-NEXT: .csect .text[PR],2
; CHECK-LABEL: .static_foo:
; CHECK-NOT: .csect extern_foo
; CHECK: .toc
; CHECK-NOT: .tc