http://llvm.org/bugs/show_bug.cgi?id=21130
Bug ID: 21130
Summary: gvn badly replaces a call to fptosi
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
; ModuleID = 'plop.ll'
target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
define i8 @jit_main() {
EntryBlock:
%0 = fptosi double 1.560000e+02 to i8
ret i8 %0
}
opt -S --gvn plop.ll shows:
define i8 @jit_main() {
EntryBlock:
ret i8 127
}
it should be ret i8 -100.
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