3 files changed, 9 insertions, 3 deletions
diff --git a/llvm/test/FrontendC/libcalls-d.c b/llvm/test/FrontendC/libcalls-d.c
index e9e31dbada6..126866ad629 100644
--- a/llvm/test/FrontendC/libcalls-d.c
+++ b/llvm/test/FrontendC/libcalls-d.c
@@ -1,6 +1,8 @@
 // llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't
 // and -fno-builtins shouldn't.
-// RUN: %llvmgcc %s -S -emit-llvm -O0 -o - | grep {call.*exp2\\.f64}
+// -fno-math-errno should emit an llvm intrinsic, -fmath-errno should not.
+// RUN: %llvmgcc %s -S -fno-math-errno -emit-llvm -O0 -o - | grep {call.*exp2\\.f64}
+// RUN: %llvmgcc %s -S -fmath-errno -emit-llvm -O0 -o - | grep {call.*exp2}
 // RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
 // RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2}
 
diff --git a/llvm/test/FrontendC/libcalls-ld.c b/llvm/test/FrontendC/libcalls-ld.c
index ce612e91c37..6533eb88d9e 100644
--- a/llvm/test/FrontendC/libcalls-ld.c
+++ b/llvm/test/FrontendC/libcalls-ld.c
@@ -1,6 +1,8 @@
 // llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't
 // and -fno-builtins shouldn't.
-// RUN: %llvmgcc %s -S -emit-llvm -O0 -o - | grep {call.*exp2\\..*f}
+// -fno-math-errno should emit an llvm intrinsic, -fmath-errno should not.
+// RUN: %llvmgcc %s -S -fno-math-errno -emit-llvm -O0 -o - | grep {call.*exp2\\..*f}
+// RUN: %llvmgcc %s -S -fmath-errno -emit-llvm -O0 -o - | grep {call.*exp2l}
 // RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
 // RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2l}
 
diff --git a/llvm/test/FrontendC/libcalls.c b/llvm/test/FrontendC/libcalls.c
index 9bb84316ebd..a2761dd5b00 100644
--- a/llvm/test/FrontendC/libcalls.c
+++ b/llvm/test/FrontendC/libcalls.c
@@ -1,6 +1,8 @@
 // llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't
 // and -fno-builtins shouldn't.
-// RUN: %llvmgcc %s -S -emit-llvm -O0 -o - | grep {call.*exp2\\.f32}
+// -fno-math-errno should emit an llvm intrinsic, -fmath-errno should not.
+// RUN: %llvmgcc %s -S -emit-llvm -fno-math-errno -O0 -o - | grep {call.*exp2\\.f32}
+// RUN: %llvmgcc %s -S -emit-llvm -fmath-errno -O0 -o - | grep {call.*exp2f}
 // RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
 // RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2f}