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llvm-project/llvm/test/CodeGen/X86/x86-64-dead-stack-adjust.ll

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Add mcpu to tests to prevent them from using AVX instructions on Sandy Bridge after r155618. llvm-svn: 155696
2012-04-27 15:11:58 +08:00
; RUN: llc < %s -mcpu=nehalem | not grep rsp
Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. cvtsi2* should parse with an 'l' or 'q' suffix or no suffix at all. No suffix should be treated the same as 'l' suffix. Printing should always print a suffix. Previously we didn't parse or print an 'l' suffix. cvtt*2si/cvt*2si should parse with an 'l' or 'q' suffix or not suffix at all. No suffix should use the destination register size to choose encoding. Printing should not print a suffix. Original 'l' suffix issue with cvtsi2* pointed out by Michael Kuperstein. llvm-svn: 171668
2013-01-07 04:39:29 +08:00
; RUN: llc < %s -mcpu=nehalem | grep cvttsd2si
actually run llc, thanks Dan :) llvm-svn: 47677
2008-02-28 01:46:54 +08:00
Make X86TargetLowering::LowerSINT_TO_FP return without creating a dead stack slot and store if the SINT_TO_FP is actually legal. This allows us to compile: double a(double b) {return (unsigned)b;} to: _a: cvttsd2siq %xmm0, %rax movl %eax, %eax cvtsi2sdq %rax, %xmm0 ret instead of: _a: subq $8, %rsp cvttsd2siq %xmm0, %rax movl %eax, %eax cvtsi2sdq %rax, %xmm0 addq $8, %rsp ret crazy. llvm-svn: 47660
2008-02-27 13:57:41 +08:00
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-apple-darwin8"
define double @a(double %b) nounwind {
entry:
%tmp12 = fptoui double %b to i32 ; <i32> [#uses=1]
%tmp123 = uitofp i32 %tmp12 to double ; <double> [#uses=1]
ret double %tmp123
}