[Issue 23076] New: [ICE][backend][REG] Crash with -inline -O
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Sun May 1 14:18:09 UTC 2022
https://issues.dlang.org/show_bug.cgi?id=23076
Issue ID: 23076
Summary: [ICE][backend][REG] Crash with -inline -O
Product: D
Version: D2
Hardware: x86_64
OS: All
Status: NEW
Severity: regression
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: aliloko at gmail.com
Created attachment 1851
--> https://issues.dlang.org/attachment.cgi?id=1851&action=edit
main source
DMD32 D Compiler v2.100.0-beta.1-dirty
Please consider the following program:
------------------ main.d --------------------------
float mul3(float a, float b, float t)
{
return t * b * a;
}
class A
{
ushort depthLow = 0;
ushort depthHigh = 30000;
void fun(short* pixels)
{
short depthA = (cast(short)(mul3(depthHigh, depthLow, 0)));
short depthB = (cast(short)(mul3(depthLow, depthHigh, 0)));
pixels[depthA] = depthB;
}
}
-----------------------------------------------------
You may now crash the compiler with the following build command:
$ dmd -m64 -inline -O -w main.d
This is a regression, no ICE with dmd.2.099.1
--
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