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llvm-project/llvm/test/CodeGen/Mips/inlineasm-assembler-directi...

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[mips] Set GCC-compatible MIPS asssembler options before inline asm blocks. Summary: When generating MIPS assembly, LLVM always overrides the default assembler options by emitting the '.set noreorder', '.set nomacro' and '.set noat' directives, while GCC uses the default options if an assembly-level function contains inline assembly code. This becomes a problem when the code generated by LLVM is interleaved with inline assembly which assumes GCC-like assembler options (from Linux, for example). This patch fixes these conflicts by setting the appropriate assembler options at the beginning of an inline asm block and popping them at the end. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6637 llvm-svn: 224425
2014-12-17 18:56:16 +08:00
; RUN: llc -march=mips < %s | FileCheck %s
; Check for the emission of appropriate assembler directives before and
; after the inline assembly code.
define void @f() nounwind {
entry:
; CHECK: #APP
; CHECK-NEXT: .set push
; CHECK-NEXT: .set at
; CHECK-NEXT: .set macro
; CHECK-NEXT: .set reorder
; CHECK: addi $9, ${{[2-9][0-9]?}}, 8
[mips][ias] Replace invalid assembly insn in test since IAS parses inline assembly. This is NFC at the moment but will prevent this test from failing when IAS is the default. llvm-svn: 253033
2015-11-13 19:44:00 +08:00
; CHECK: ori ${{[2-9][0-9]?}}, $9, 6
[mips] Set GCC-compatible MIPS asssembler options before inline asm blocks. Summary: When generating MIPS assembly, LLVM always overrides the default assembler options by emitting the '.set noreorder', '.set nomacro' and '.set noat' directives, while GCC uses the default options if an assembly-level function contains inline assembly code. This becomes a problem when the code generated by LLVM is interleaved with inline assembly which assumes GCC-like assembler options (from Linux, for example). This patch fixes these conflicts by setting the appropriate assembler options at the beginning of an inline asm block and popping them at the end. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6637 llvm-svn: 224425
2014-12-17 18:56:16 +08:00
; CHECK: .set pop
; CHECK-NEXT: #NO_APP
%a = alloca i32, align 4
%b = alloca i32, align 4
store i32 20, i32* %a, align 4
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%0 = load i32, i32* %a, align 4
[mips][ias] Replace invalid assembly insn in test since IAS parses inline assembly. This is NFC at the moment but will prevent this test from failing when IAS is the default. llvm-svn: 253033
2015-11-13 19:44:00 +08:00
%1 = call i32 asm sideeffect "addi $$9, $1, 8\0A\09ori $0, $$9, 6", "=r,r,~{$1}"(i32 %0)
[mips] Set GCC-compatible MIPS asssembler options before inline asm blocks. Summary: When generating MIPS assembly, LLVM always overrides the default assembler options by emitting the '.set noreorder', '.set nomacro' and '.set noat' directives, while GCC uses the default options if an assembly-level function contains inline assembly code. This becomes a problem when the code generated by LLVM is interleaved with inline assembly which assumes GCC-like assembler options (from Linux, for example). This patch fixes these conflicts by setting the appropriate assembler options at the beginning of an inline asm block and popping them at the end. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6637 llvm-svn: 224425
2014-12-17 18:56:16 +08:00
store i32 %1, i32* %b, align 4
ret void
}