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[llvm][AIX] Fix triple OS version on PASE #163392

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Merged
jakeegan merged 1 commit into from
Oct 16, 2025
Merged

[llvm][AIX] Fix triple OS version on PASE #163392

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22 changes: 21 additions & 1 deletion llvm/lib/TargetParser/Unix/Host.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -59,10 +59,30 @@ static std::string updateTripleOSVersion(std::string TargetTripleString) {
if (TT.getOS() == Triple::AIX && !TT.getOSMajorVersion()) {
struct utsname name;
if (uname(&name) != -1) {
std::string release = name.release;

if (strcmp(name.sysname, "OS400") == 0) {
/*
PASE uses different versioning system than AIX.
The following table shows the currently supported PASE
releases and the corresponding AIX release:
--------------------------
PASE | AIX
--------------------------
V7R4 | 7.2 (TL2)
--------------------------
V7R5 | 7.2 (TL5)
--------------------------
V7R6 | 7.3 (TL1)
--------------------------
*/
release = (release == "4" || release == "5") ? "2" : "3";
}

std::string NewOSName = std::string(Triple::getOSTypeName(Triple::AIX));
NewOSName += name.version;
NewOSName += '.';
NewOSName += name.release;
NewOSName += release;
NewOSName += ".0.0";
TT.setOSName(NewOSName);
return TT.str();
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