Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/2008-06-13-NotVolatileLoadStore.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | afa8332a0e37 |
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; RUN: llc < %s -march=x86 | not grep movsd ; RUN: llc < %s -march=x86 | grep movw ; RUN: llc < %s -march=x86 | grep addw ; These transforms are turned off for load volatiles and stores. ; Check that they weren't turned off for all loads and stores! @atomic = global double 0.000000e+00 ; <double*> [#uses=1] @atomic2 = global double 0.000000e+00 ; <double*> [#uses=1] @ioport = global i32 0 ; <i32*> [#uses=1] @ioport2 = global i32 0 ; <i32*> [#uses=1] define i16 @f(i64 %x) { %b = bitcast i64 %x to double ; <double> [#uses=1] store double %b, double* @atomic store double 0.000000e+00, double* @atomic2 %l = load i32* @ioport ; <i32> [#uses=1] %t = trunc i32 %l to i16 ; <i16> [#uses=1] %l2 = load i32* @ioport2 ; <i32> [#uses=1] %tmp = lshr i32 %l2, 16 ; <i32> [#uses=1] %t2 = trunc i32 %tmp to i16 ; <i16> [#uses=1] %f = add i16 %t, %t2 ; <i16> [#uses=1] ret i16 %f }