[CodeGen] change const-ness of complex calls
After clarification about the C standard, POSIX, and implementations:
The C standard allows errno-setting, and it's (unfortunately for optimization) even
more clearly stated in the newer additions to the standards.
We can leave these functions as always constant ('c') because they don't
actually do any math and therefore won't set errno:
cimag ( http://en.cppreference.com/w/c/numeric/complex/cimag )
creal ( http://en.cppreference.com/w/c/numeric/complex/creal )
cproj ( http://en.cppreference.com/w/c/numeric/complex/cproj )
conj (http://en.cppreference.com/w/c/numeric/complex/conj )
Differential Revision: https://reviews.llvm.org/D39611
llvm-svn: 318598
diff --git a/clang/test/CodeGen/complex-builtins.c b/clang/test/CodeGen/complex-builtins.c
index 687a294..dbf3b59 100644
--- a/clang/test/CodeGen/complex-builtins.c
+++ b/clang/test/CodeGen/complex-builtins.c
@@ -9,17 +9,17 @@
// NO__ERRNO: declare double @cabs(double, double) [[READNONE:#[0-9]+]]
// NO__ERRNO: declare float @cabsf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare x86_fp80 @cabsl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE:#[0-9]+]]
-// HAS_ERRNO: declare double @cabs(double, double) [[READNONE:#[0-9]+]]
-// HAS_ERRNO: declare float @cabsf(<2 x float>) [[READNONE]]
-// HAS_ERRNO: declare x86_fp80 @cabsl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE:#[0-9]+]]
+// HAS_ERRNO: declare double @cabs(double, double) [[NOT_READNONE:#[0-9]+]]
+// HAS_ERRNO: declare float @cabsf(<2 x float>) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @cabsl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_cacos(f); __builtin_cacosf(f); __builtin_cacosl(f);
// NO__ERRNO: declare { double, double } @cacos(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @cacosf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cacosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @cacos(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @cacosf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @cacos(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @cacosf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cacosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_cacosh(f); __builtin_cacoshf(f); __builtin_cacoshl(f);
@@ -27,8 +27,8 @@
// NO__ERRNO: declare { double, double } @cacosh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @cacoshf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cacoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @cacosh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @cacoshf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @cacosh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @cacoshf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cacoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_carg(f); __builtin_cargf(f); __builtin_cargl(f);
@@ -36,8 +36,8 @@
// NO__ERRNO: declare double @carg(double, double) [[READNONE]]
// NO__ERRNO: declare float @cargf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare x86_fp80 @cargl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare double @carg(double, double) [[READNONE]]
-// HAS_ERRNO: declare float @cargf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare double @carg(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @cargf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare x86_fp80 @cargl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_casin(f); __builtin_casinf(f); __builtin_casinl(f);
@@ -45,8 +45,8 @@
// NO__ERRNO: declare { double, double } @casin(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @casinf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @casinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @casin(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @casinf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @casin(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @casinf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @casinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_casinh(f); __builtin_casinhf(f); __builtin_casinhl(f);
@@ -54,8 +54,8 @@
// NO__ERRNO: declare { double, double } @casinh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @casinhf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @casinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @casinh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @casinhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @casinh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @casinhf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @casinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_catan(f); __builtin_catanf(f); __builtin_catanl(f);
@@ -63,8 +63,8 @@
// NO__ERRNO: declare { double, double } @catan(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @catanf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @catanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @catan(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @catanf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @catan(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @catanf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @catanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_catanh(f); __builtin_catanhf(f); __builtin_catanhl(f);
@@ -72,8 +72,8 @@
// NO__ERRNO: declare { double, double } @catanh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @catanhf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @catanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @catanh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @catanhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @catanh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @catanhf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @catanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_ccos(f); __builtin_ccosf(f); __builtin_ccosl(f);
@@ -81,8 +81,8 @@
// NO__ERRNO: declare { double, double } @ccos(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @ccosf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ccosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @ccos(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @ccosf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @ccos(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @ccosf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ccosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_ccosh(f); __builtin_ccoshf(f); __builtin_ccoshl(f);
@@ -90,8 +90,8 @@
// NO__ERRNO: declare { double, double } @ccosh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @ccoshf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ccoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @ccosh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @ccoshf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @ccosh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @ccoshf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ccoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_cexp(f); __builtin_cexpf(f); __builtin_cexpl(f);
@@ -99,8 +99,8 @@
// NO__ERRNO: declare { double, double } @cexp(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @cexpf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cexpl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @cexp(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @cexpf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @cexp(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @cexpf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cexpl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_cimag(f); __builtin_cimagf(f); __builtin_cimagl(f);
@@ -122,8 +122,8 @@
// NO__ERRNO: declare { double, double } @clog(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @clogf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @clogl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @clog(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @clogf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @clog(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @clogf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @clogl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_cproj(f); __builtin_cprojf(f); __builtin_cprojl(f);
@@ -131,7 +131,7 @@
// NO__ERRNO: declare { double, double } @cproj(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @cprojf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cprojl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @cproj(double, double) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @cproj(double, double) [[READNONE:#[0-9]+]]
// HAS_ERRNO: declare <2 x float> @cprojf(<2 x float>) [[READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cprojl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
@@ -140,8 +140,8 @@
// NO__ERRNO: declare { double, double } @cpow(double, double, double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @cpowf(<2 x float>, <2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cpowl({ x86_fp80, x86_fp80 }* byval align 16, { x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @cpow(double, double, double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @cpowf(<2 x float>, <2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @cpow(double, double, double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @cpowf(<2 x float>, <2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cpowl({ x86_fp80, x86_fp80 }* byval align 16, { x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_creal(f); __builtin_crealf(f); __builtin_creall(f);
@@ -156,8 +156,8 @@
// NO__ERRNO: declare { double, double } @csin(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @csinf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @csin(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @csinf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @csin(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @csinf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_csinh(f); __builtin_csinhf(f); __builtin_csinhl(f);
@@ -165,8 +165,8 @@
// NO__ERRNO: declare { double, double } @csinh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @csinhf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @csinh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @csinhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @csinh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @csinhf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_csqrt(f); __builtin_csqrtf(f); __builtin_csqrtl(f);
@@ -174,8 +174,8 @@
// NO__ERRNO: declare { double, double } @csqrt(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @csqrtf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csqrtl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @csqrt(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @csqrtf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @csqrt(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @csqrtf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csqrtl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_ctan(f); __builtin_ctanf(f); __builtin_ctanl(f);
@@ -183,8 +183,8 @@
// NO__ERRNO: declare { double, double } @ctan(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @ctanf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ctanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @ctan(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @ctanf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @ctan(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @ctanf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
__builtin_ctanh(f); __builtin_ctanhf(f); __builtin_ctanhl(f);
@@ -192,8 +192,8 @@
// NO__ERRNO: declare { double, double } @ctanh(double, double) [[READNONE]]
// NO__ERRNO: declare <2 x float> @ctanhf(<2 x float>) [[READNONE]]
// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
-// HAS_ERRNO: declare { double, double } @ctanh(double, double) [[READNONE]]
-// HAS_ERRNO: declare <2 x float> @ctanhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { double, double } @ctanh(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare <2 x float> @ctanhf(<2 x float>) [[NOT_READNONE]]
// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
};
@@ -201,6 +201,6 @@
// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
// NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind "correctly{{.*}} }
-// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
// HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind "correctly{{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }