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llvm-mirror/test/CodeGen/X86/fast-isel.ll
Daniel Sanders 7a3a160940 Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call
Summary:
AsmPrinter::EmitInlineAsm() will no longer use the EmitRawText() call for
targets with mature MC support. Such targets will always parse the inline
assembly (even when emitting assembly). Targets without mature MC support
continue to use EmitRawText() for assembly output.

The hasRawTextSupport() check in AsmPrinter::EmitInlineAsm() has been replaced
with MCAsmInfo::UseIntegratedAs which when true, causes the integrated assembler
to parse inline assembly (even when emitting assembly output). UseIntegratedAs
is set to true for targets that consider any failure to parse valid assembly
to be a bug. Target specific subclasses generally enable the integrated
assembler in their constructor. The default value can be overridden with
-no-integrated-as.

All tests that rely on inline assembly supporting invalid assembly (for example,
those that use mnemonics such as 'foo' or 'hello world') have been updated to
disable the integrated assembler.

Changes since review (and last commit attempt):
- Fixed test failures that were missed due to configuration of local build.
  (fixes crash.ll and a couple others).
- Fixed tests that happened to pass because the local build was on X86
  (should fix 2007-12-17-InvokeAsm.ll)
- mature-mc-support.ll's should no longer require all targets to be compiled.
  (should fix ARM and PPC buildbots)
- Object output (-filetype=obj and similar) now forces the integrated assembler
  to be enabled regardless of default setting or -no-integrated-as.
  (should fix SystemZ buildbots)

Reviewers: rafael

Reviewed By: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2686

llvm-svn: 201333
2014-02-13 14:44:26 +00:00

128 lines
2.7 KiB
LLVM

; RUN: llc < %s -fast-isel -fast-isel-abort -verify-machineinstrs -march=x86 -mattr=sse2 -no-integrated-as
; RUN: llc < %s -fast-isel -fast-isel-abort -verify-machineinstrs -mtriple=x86_64-apple-darwin10 -no-integrated-as
; This tests very minimal fast-isel functionality.
define i32* @foo(i32* %p, i32* %q, i32** %z) nounwind {
entry:
%r = load i32* %p
%s = load i32* %q
%y = load i32** %z
br label %fast
fast:
%t0 = add i32 %r, %s
%t1 = mul i32 %t0, %s
%t2 = sub i32 %t1, %s
%t3 = and i32 %t2, %s
%t4 = xor i32 %t3, 3
%t5 = xor i32 %t4, %s
%t6 = add i32 %t5, 2
%t7 = getelementptr i32* %y, i32 1
%t8 = getelementptr i32* %t7, i32 %t6
call void asm sideeffect "hello world", ""()
br label %exit
exit:
ret i32* %t8
}
define void @bar(double* %p, double* %q) nounwind {
entry:
%r = load double* %p
%s = load double* %q
br label %fast
fast:
%t0 = fadd double %r, %s
%t1 = fmul double %t0, %s
%t2 = fsub double %t1, %s
%t3 = fadd double %t2, 707.0
br label %exit
exit:
store double %t3, double* %q
ret void
}
define i32 @cast() nounwind {
entry:
%tmp2 = bitcast i32 0 to i32
ret i32 %tmp2
}
define void @ptrtoint_i1(i8* %p, i1* %q) nounwind {
%t = ptrtoint i8* %p to i1
store i1 %t, i1* %q
ret void
}
define i8* @inttoptr_i1(i1 %p) nounwind {
%t = inttoptr i1 %p to i8*
ret i8* %t
}
define i32 @ptrtoint_i32(i8* %p) nounwind {
%t = ptrtoint i8* %p to i32
ret i32 %t
}
define i8* @inttoptr_i32(i32 %p) nounwind {
%t = inttoptr i32 %p to i8*
ret i8* %t
}
define void @trunc_i32_i8(i32 %x, i8* %p) nounwind {
%tmp1 = trunc i32 %x to i8
store i8 %tmp1, i8* %p
ret void
}
define void @trunc_i16_i8(i16 signext %x, i8* %p) nounwind {
%tmp1 = trunc i16 %x to i8
store i8 %tmp1, i8* %p
ret void
}
define void @shl_i8(i8 %a, i8 %c, i8* %p) nounwind {
%tmp = shl i8 %a, %c
store i8 %tmp, i8* %p
ret void
}
define void @mul_i8(i8 %a, i8* %p) nounwind {
%tmp = mul i8 %a, 17
store i8 %tmp, i8* %p
ret void
}
define void @load_store_i1(i1* %p, i1* %q) nounwind {
%t = load i1* %p
store i1 %t, i1* %q
ret void
}
@crash_test1x = external global <2 x i32>, align 8
define void @crash_test1() nounwind ssp {
%tmp = load <2 x i32>* @crash_test1x, align 8
%neg = xor <2 x i32> %tmp, <i32 -1, i32 -1>
ret void
}
declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
define i64* @life() nounwind {
%a1 = alloca i64*, align 8
%a2 = bitcast i64** %a1 to i8*
call void @llvm.lifetime.start(i64 -1, i8* %a2) nounwind
%a3 = load i64** %a1, align 8
ret i64* %a3
}
declare void @llvm.donothing() readnone
; CHECK: donada
define void @donada() nounwind {
entry:
call void @llvm.donothing()
ret void
}