[legalize-types] Remove stale entries from SoftenedFloats.
Summary:
When replacing a SDValue, we should remove the replaced value from
SoftenedFloats (and possibly the other maps as well?).
When we revisit a Node because it needs analyzing again, we have to
remove all result values from SoftenedFloats (and possibly other maps?).
This fixes the fp128 test failures with expensive checks for X86.
I think we probably should also remove the values from the other maps
(PromotedIntegers and so on), let me know what you think.
Reviewers: baldrick, bogner, davidxl, ab, arsenm, pirama, chh, RKSimon
Reviewed By: chh
Subscribers: danalbert, wdng, srhines, hfinkel, sepavloff, llvm-commits
Differential Revision: https://reviews.llvm.org/D29265
llvm-svn: 296964
2017-03-04 20:00:35 +08:00
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; RUN: llc < %s -O2 -mtriple=x86_64-linux-android -mattr=+mmx \
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; RUN: -enable-legalize-types-checking | FileCheck %s
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; RUN: llc < %s -O2 -mtriple=x86_64-linux-gnu -mattr=+mmx \
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; RUN: -enable-legalize-types-checking | FileCheck %s
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2015-12-15 06:08:36 +08:00
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; __float128 myFP128 = 1.0L; // x86_64-linux-android
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@my_fp128 = global fp128 0xL00000000000000003FFF000000000000, align 16
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define fp128 @get_fp128() {
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entry:
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%0 = load fp128, fp128* @my_fp128, align 16
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ret fp128 %0
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; CHECK-LABEL: get_fp128:
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; CHECK: movaps my_fp128(%rip), %xmm0
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; CHECK-NEXT: retq
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}
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@TestLoadExtend.data = internal unnamed_addr constant [2 x float] [float 0x3FB99999A0000000, float 0x3FC99999A0000000], align 4
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define fp128 @TestLoadExtend(fp128 %x, i32 %n) {
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entry:
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%idxprom = sext i32 %n to i64
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%arrayidx = getelementptr inbounds [2 x float], [2 x float]* @TestLoadExtend.data, i64 0, i64 %idxprom
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%0 = load float, float* %arrayidx, align 4
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%conv = fpext float %0 to fp128
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ret fp128 %conv
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; CHECK-LABEL: TestLoadExtend:
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; CHECK: movslq %edi, %rax
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; CHECK-NEXT: movss TestLoadExtend.data(,%rax,4), %xmm0
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; CHECK-NEXT: callq __extendsftf2
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; CHECK: retq
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}
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; CHECK-LABEL: my_fp128:
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; CHECK-NEXT: .quad 0
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; CHECK-NEXT: .quad 4611404543450677248
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; CHECK-NEXT: .size my_fp128, 16
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