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x64: fix CvtFloatToUintSeq: do not clobber src. (#4842)

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This slipped through the regalloc2 operand code update in #4811: the
CvtFloatToUintSeq pseudo-instruction actually clobbers its source. It
was marked as a "mod" operand in the original and I mistakenly
converted it to a "use" as I had not seen the actual clobber. The
instruction now takes an extra temp and makes a copy of `src` in the
appropriate place.

Fixes #4840.
This commit is contained in:
Chris Fallin
2022-09-01 15:46:57 -07:00
committed by GitHub
parent 08e7a7f1a0
commit 385bd0cbf8
5 changed files with 51 additions and 17 deletions
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16
tests/misc_testsuite/issue4840.wast Normal file
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@@ -0,0 +1,16 @@
(module
(func (export "f") (param f32 i32) (result f64)
local.get 1
f64.convert_i32_u
i32.trunc_f64_u
f64.convert_i32_s
local.get 1
f64.convert_i32_u
global.set 0
drop
global.get 0
)
(global (;0;) (mut f64) f64.const 0)
)
(assert_return (invoke "f" (f32.const 1.23) (i32.const -2147483648)) (f64.const 2147483648))