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Pattern for f32 to i64 conversion.

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llvm-svn: 148869
This commit is contained in:
Akira Hatanaka 2012-01-24 22:05:25 +00:00
parent 012239e10a
commit 12cdcf3bc6
2 changed files with 8 additions and 0 deletions
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1
lib/Target/Mips/MipsInstrFPU.td
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@ -337,6 +337,7 @@ let Predicates = [IsFP64bit] in {
(CVT_D64_L (DMTC1 CPU64Regs:$src))>;
def : Pat<(i32 (fp_to_sint FGR64:$src)), (MFC1 (TRUNC_W_D64 FGR64:$src))>;
def : Pat<(i64 (fp_to_sint FGR32:$src)), (DMFC1 (TRUNC_L_S FGR32:$src))>;
def : Pat<(i64 (fp_to_sint FGR64:$src)), (DMFC1 (TRUNC_L_D64 FGR64:$src))>;
def : Pat<(f32 (fround FGR64:$src)), (CVT_S_D64 FGR64:$src)>;

7
test/CodeGen/Mips/mips64ext.ll
View File

@ -17,3 +17,10 @@ entry:
ret i64 %conv
}
define i64 @i64_float(float %f) nounwind readnone {
entry:
; CHECK: trunc.l.s
%conv = fptosi float %f to i64
ret i64 %conv
}