[llvm] [TLI] Add support for hypot libcall. (PR #113724)
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Fri Oct 25 11:31:09 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-analysis
Author: Kenji Mouri / 毛利 研二 (MouriNaruto)
<details>
<summary>Changes</summary>
This patch adds basic support for `hypot`. Constant folding support will be submitted in a subsequent patch.
Related issue: https://github.com/llvm/llvm-project/issues/113711
Note: It's my first time contributing to the LLVM with encouragement from one of my friends, @<!-- -->fawdlstty. I learned a lot from https://github.com/llvm/llvm-project/pull/99611, and thanks for that.
Kenji Mouri
---
Full diff: https://github.com/llvm/llvm-project/pull/113724.diff
6 Files Affected:
- (modified) llvm/include/llvm/Analysis/TargetLibraryInfo.def (+15)
- (modified) llvm/lib/Analysis/TargetLibraryInfo.cpp (+3)
- (modified) llvm/lib/Transforms/Utils/BuildLibCalls.cpp (+3)
- (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 f890e2b9ec4c82..f43ee40fa1b87f 100644
--- a/llvm/include/llvm/Analysis/TargetLibraryInfo.def
+++ b/llvm/include/llvm/Analysis/TargetLibraryInfo.def
@@ -1656,6 +1656,21 @@ TLI_DEFINE_ENUM_INTERNAL(htons)
TLI_DEFINE_STRING_INTERNAL("htons")
TLI_DEFINE_SIG_INTERNAL(Int16, Int16)
+/// double hypot(double x, double y);
+TLI_DEFINE_ENUM_INTERNAL(hypot)
+TLI_DEFINE_STRING_INTERNAL("hypot")
+TLI_DEFINE_SIG_INTERNAL(Dbl, Dbl, Dbl)
+
+/// float hypotf(float x, float y);
+TLI_DEFINE_ENUM_INTERNAL(hypotf)
+TLI_DEFINE_STRING_INTERNAL("hypotf")
+TLI_DEFINE_SIG_INTERNAL(Flt, Flt, Flt)
+
+/// long double hypotl(long double x, long double y);
+TLI_DEFINE_ENUM_INTERNAL(hypotl)
+TLI_DEFINE_STRING_INTERNAL("hypotl")
+TLI_DEFINE_SIG_INTERNAL(LDbl, LDbl, LDbl)
+
/// int iprintf(const char *format, ...);
TLI_DEFINE_ENUM_INTERNAL(iprintf)
TLI_DEFINE_STRING_INTERNAL("iprintf")
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index 0ee83d217a5001..947f168fcaf618 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -300,6 +300,7 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_expf);
TLI.setUnavailable(LibFunc_floorf);
TLI.setUnavailable(LibFunc_fmodf);
+ TLI.setUnavailable(LibFunc_hypotf);
TLI.setUnavailable(LibFunc_log10f);
TLI.setUnavailable(LibFunc_logf);
TLI.setUnavailable(LibFunc_modff);
@@ -331,6 +332,7 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_floorl);
TLI.setUnavailable(LibFunc_fmodl);
TLI.setUnavailable(LibFunc_frexpl);
+ TLI.setUnavailable(LibFunc_hypotl);
TLI.setUnavailable(LibFunc_ldexpl);
TLI.setUnavailable(LibFunc_log10l);
TLI.setUnavailable(LibFunc_logl);
@@ -367,6 +369,7 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_fmaxf);
TLI.setUnavailable(LibFunc_fmin);
TLI.setUnavailable(LibFunc_fminf);
+ TLI.setAvailableWithName(LibFunc_hypot, "_hypot");
TLI.setUnavailable(LibFunc_log1p);
TLI.setUnavailable(LibFunc_log1pf);
TLI.setUnavailable(LibFunc_log2);
diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index 13323604eb514a..905ae9ba186c84 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -1212,6 +1212,9 @@ bool llvm::inferNonMandatoryLibFuncAttrs(Function &F,
case LibFunc_fmod:
case LibFunc_fmodf:
case LibFunc_fmodl:
+ case LibFunc_hypot:
+ case LibFunc_hypotf:
+ case LibFunc_hypotl:
case LibFunc_isascii:
case LibFunc_isdigit:
case LibFunc_labs:
diff --git a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
index 3e9b2d94efda89..e6a8172cd9f85e 100644
--- a/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
+++ b/llvm/test/Transforms/InferFunctionAttrs/annotate.ll
@@ -589,6 +589,15 @@ declare ptr @gets(ptr)
; CHECK: declare noundef i32 @gettimeofday(ptr nocapture noundef, ptr nocapture noundef) [[NOFREE_NOUNWIND]]
declare i32 @gettimeofday(ptr, ptr)
+; CHECK: declare double @hypot(double, double) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare double @hypot(double, double)
+
+; CHECK: declare float @hypotf(float, float) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare float @hypotf(float, float)
+
+; CHECK: declare x86_fp80 @hypotl(x86_fp80, x86_fp80) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
+declare x86_fp80 @hypotl(x86_fp80, x86_fp80)
+
; CHECK: declare i32 @isascii(i32) [[NOFREE_NOUNWIND_WILLRETURN_WRITEONLY]]
declare i32 @isascii(i32)
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 20e7e15e3efb55..85729c0e549114 100644
--- a/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml
+++ b/llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml
@@ -34,7 +34,7 @@
#
# CHECK: << Total TLI yes SDK no: 18
# CHECK: >> Total TLI no SDK yes: 0
-# CHECK: == Total TLI yes SDK yes: 265
+# CHECK: == Total TLI yes SDK yes: 268
#
# WRONG_DETAIL: << TLI yes SDK no : '_ZdaPv' aka operator delete[](void*)
# WRONG_DETAIL: >> TLI no SDK yes: '_ZdaPvj' aka operator delete[](void*, unsigned int)
@@ -48,14 +48,14 @@
# WRONG_DETAIL: << TLI yes SDK no : 'fminimum_numl'
# WRONG_SUMMARY: << Total TLI yes SDK no: 19{{$}}
# WRONG_SUMMARY: >> Total TLI no SDK yes: 1{{$}}
-# WRONG_SUMMARY: == Total TLI yes SDK yes: 264
+# WRONG_SUMMARY: == Total TLI yes SDK yes: 267
#
## 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 516 symbols, 283 available
-# AVAIL-COUNT-283: {{^}} available
+# AVAIL: TLI knows 519 symbols, 286 available
+# AVAIL-COUNT-286: {{^}} available
# AVAIL-NOT: {{^}} available
# UNAVAIL-COUNT-233: not available
# UNAVAIL-NOT: not available
@@ -590,6 +590,18 @@ DynamicSymbols:
Type: STT_FUNC
Section: .text
Binding: STB_GLOBAL
+ - Name: hypot
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
+ - Name: hypotf
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
+ - Name: hypotl
+ Type: STT_FUNC
+ Section: .text
+ Binding: STB_GLOBAL
- Name: isdigit
Type: STT_FUNC
Section: .text
diff --git a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
index 346940384aff91..e7b531612329f6 100644
--- a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
+++ b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
@@ -249,6 +249,9 @@ TEST_F(TargetLibraryInfoTest, ValidProto) {
"declare %struct* @getpwnam(i8*)\n"
"declare i8* @gets(i8*)\n"
"declare i32 @gettimeofday(%struct*, i8*)\n"
+ "declare double @hypot(double, double)\n"
+ "declare float @hypotf(float, float)\n"
+ "declare x86_fp80 @hypotl(x86_fp80, x86_fp80)\n"
"declare i32 @_Z7isasciii(i32)\n"
"declare i32 @_Z7isdigiti(i32)\n"
"declare i64 @labs(i64)\n"
``````````
</details>
https://github.com/llvm/llvm-project/pull/113724
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