[llvm] [TLI] Add basic support for remquo libcall (PR #99611)
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Fri Jul 19 00:43:04 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-analysis
@llvm/pr-subscribers-llvm-transforms
Author: Yingwei Zheng (dtcxzyw)
<details>
<summary>Changes</summary>
This patch adds basic support for `remquo`. Constant folding support will be submitted in a subsequent patch.
Related issue: https://github.com/llvm/llvm-project/issues/99497
---
Full diff: https://github.com/llvm/llvm-project/pull/99611.diff
6 Files Affected:
- (modified) llvm/include/llvm/Analysis/TargetLibraryInfo.def (+15)
- (modified) llvm/lib/Analysis/TargetLibraryInfo.cpp (+2)
- (modified) llvm/lib/Transforms/Utils/BuildLibCalls.cpp (+5)
- (modified) llvm/test/Transforms/InferFunctionAttrs/annotate.ll (+9)
- (modified) llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml (+16-4)
- (modified) llvm/unittests/Analysis/TargetLibraryInfoTest.cpp (+3)
``````````diff
diff --git a/llvm/include/llvm/Analysis/TargetLibraryInfo.def b/llvm/include/llvm/Analysis/TargetLibraryInfo.def
index 717693a7cf63c..623cdb4b6e0b7 100644
--- a/llvm/include/llvm/Analysis/TargetLibraryInfo.def
+++ b/llvm/include/llvm/Analysis/TargetLibraryInfo.def
@@ -1953,6 +1953,21 @@ TLI_DEFINE_ENUM_INTERNAL(remainderl)
TLI_DEFINE_STRING_INTERNAL("remainderl")
TLI_DEFINE_SIG_INTERNAL(LDbl, LDbl, LDbl)
+/// double remquo(double x, double y, int *quo);
+TLI_DEFINE_ENUM_INTERNAL(remquo)
+TLI_DEFINE_STRING_INTERNAL("remquo")
+TLI_DEFINE_SIG_INTERNAL(Dbl, Dbl, Dbl, Ptr)
+
+/// float remquof(float x, float y, int *quo);
+TLI_DEFINE_ENUM_INTERNAL(remquof)
+TLI_DEFINE_STRING_INTERNAL("remquof")
+TLI_DEFINE_SIG_INTERNAL(Flt, Flt, Flt, Ptr)
+
+/// long double remquol(long double x, long double y, int *quo);
+TLI_DEFINE_ENUM_INTERNAL(remquol)
+TLI_DEFINE_STRING_INTERNAL("remquol")
+TLI_DEFINE_SIG_INTERNAL(LDbl, LDbl, LDbl, Ptr)
+
/// int remove(const char *path);
TLI_DEFINE_ENUM_INTERNAL(remove)
TLI_DEFINE_STRING_INTERNAL("remove")
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index bf53f562ec419..5b9a7b0f33220 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -305,6 +305,7 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_modff);
TLI.setUnavailable(LibFunc_powf);
TLI.setUnavailable(LibFunc_remainderf);
+ TLI.setUnavailable(LibFunc_remquof);
TLI.setUnavailable(LibFunc_sinf);
TLI.setUnavailable(LibFunc_sinhf);
TLI.setUnavailable(LibFunc_sqrtf);
@@ -335,6 +336,7 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_modfl);
TLI.setUnavailable(LibFunc_powl);
TLI.setUnavailable(LibFunc_remainderl);
+ TLI.setUnavailable(LibFunc_remquol);
TLI.setUnavailable(LibFunc_sinl);
TLI.setUnavailable(LibFunc_sinhl);
TLI.setUnavailable(LibFunc_sqrtl);
diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index 1ced3657184d4..0c45bd886af9d 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -1098,6 +1098,11 @@ bool llvm::inferNonMandatoryLibFuncAttrs(Function &F,
case LibFunc_ldexpl:
Changed |= setWillReturn(F);
break;
+ case LibFunc_remquo:
+ case LibFunc_remquof:
+ case LibFunc_remquol:
+ Changed |= setDoesNotCapture(F, 2);
+ [[fallthrough]];
case LibFunc_abs:
case LibFunc_acos:
case LibFunc_acosf:
diff --git a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
index 0944402a91fd0..79962b45d253a 100644
--- a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
@@ -812,6 +812,15 @@ declare x86_fp80 @remainderl(x86_fp80, x86_fp80)
; CHECK: declare noundef i32 @remove(ptr nocapture noundef readonly) [[NOFREE_NOUNWIND]]
declare i32 @remove(ptr)
+; CHECK: declare double @remquo(double, double, ptr nocapture) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare double @remquo(double, double, ptr)
+
+; CHECK: declare float @remquof(float, float, ptr nocapture) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare float @remquof(float, float, ptr)
+
+; CHECK: declare x86_fp80 @remquol(x86_fp80, x86_fp80, ptr nocapture) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare x86_fp80 @remquol(x86_fp80, x86_fp80, ptr)
+
; CHECK: declare noundef i32 @rename(ptr nocapture noundef readonly, ptr nocapture noundef readonly) [[NOFREE_NOUNWIND]]
declare i32 @rename(ptr, ptr)
diff --git a/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml b/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml
index 95c23007b1a05..5840e024e9786 100644
--- a/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml
+++ b/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml
@@ -34,21 +34,21 @@
#
# CHECK: << Total TLI yes SDK no: 8
# CHECK: >> Total TLI no SDK yes: 0
-# CHECK: == Total TLI yes SDK yes: 239
+# CHECK: == Total TLI yes SDK yes: 242
#
# WRONG_DETAIL: << TLI yes SDK no : '_ZdaPv' aka operator delete[](void*)
# WRONG_DETAIL: >> TLI no SDK yes: '_ZdaPvj' aka operator delete[](void*, unsigned int)
# WRONG_DETAIL-COUNT-8: << TLI yes SDK no : {{.*}}__hot_cold_t
# WRONG_SUMMARY: << Total TLI yes SDK no: 9{{$}}
# WRONG_SUMMARY: >> Total TLI no SDK yes: 1{{$}}
-# WRONG_SUMMARY: == Total TLI yes SDK yes: 238
+# WRONG_SUMMARY: == Total TLI yes SDK yes: 241
#
## The -COUNT suffix doesn't care if there are too many matches, so check
## the exact count first; the two directives should add up to that.
## Yes, this means additions to TLI will fail this test, but the argument
## to -COUNT can't be an expression.
-# AVAIL: TLI knows 480 symbols, 247 available
-# AVAIL-COUNT-247: {{^}} available
+# AVAIL: TLI knows 483 symbols, 250 available
+# AVAIL-COUNT-250: {{^}} available
# AVAIL-NOT: {{^}} available
# UNAVAIL-COUNT-233: not available
# UNAVAIL-NOT: not available
@@ -763,6 +763,18 @@ DynamicSymbols:
Type: STT_FUNC
Section: .text
Binding: STB_GLOBAL
+ - Name: remquo
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
+ - Name: remquof
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
+ - Name: remquol
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
- Name: rewind
Type: STT_FUNC
Section: .text
diff --git a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
index 1fe94e2aae059..beb2cc3ddaf27 100644
--- a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
+++ b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
@@ -281,6 +281,9 @@ TEST_F(TargetLibraryInfoTest, ValidProto) {
"declare float @remainderf(float, float)\n"
"declare x86_fp80 @remainderl(x86_fp80, x86_fp80)\n"
"declare i32 @remove(i8*)\n"
+ "declare double @remquo(double, double, i32*)\n"
+ "declare float @remquof(float, float, i32*)\n"
+ "declare x86_fp80 @remquol(x86_fp80, x86_fp80, i32*)\n"
"declare i32 @rename(i8*, i8*)\n"
"declare void @rewind(%struct*)\n"
"declare double @rint(double)\n"
``````````
</details>
https://github.com/llvm/llvm-project/pull/99611
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