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; Check that we can enable/disable UnsafeFPMath via function attributes. An
; attribute on one function should not magically apply to the next one.
; RUN: llc < %s -mtriple=x86_64-unknown-unknown \
; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=SAFE
; RUN: llc < %s -mtriple=x86_64-unknown-unknown \
; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=UNSAFE
; The div in these functions should be converted to a mul when unsafe-fp-math
; is enabled.
; CHECK-LABEL: unsafe_fp_math_default0:
define double @unsafe_fp_math_default0(double %x) {
; UNSAFE: mulsd
%div = fdiv arcp double %x, 3.0
ret double %div
}
; CHECK-LABEL: safe_fp_math_default0:
define double @safe_fp_math_default0(double %x) {
; SAFE: divsd
%div = fdiv double %x, 3.0
ret double %div
}
; CHECK-LABEL: unsafe_fp_math_off:
define double @unsafe_fp_math_off(double %x) {
; SAFE: divsd
; UNSAFE: divsd
%div = fdiv double %x, 3.0
ret double %div
}
; CHECK-LABEL: unsafe_fp_math_default1:
define double @unsafe_fp_math_default1(double %x) {
; With unsafe math enabled, can change this div to a mul.
; UNSAFE: mulsd
%div = fdiv arcp double %x, 3.0
ret double %div
}
; CHECK-LABEL: safe_fp_math_default1:
define double @safe_fp_math_default1(double %x) {
; With unsafe math enabled, can change this div to a mul.
; SAFE: divsd
%div = fdiv double %x, 3.0
ret double %div
}
; CHECK-LABEL: unsafe_fp_math_on:
define double @unsafe_fp_math_on(double %x) {
; SAFE: mulsd
; UNSAFE: mulsd
%div = fdiv arcp double %x, 3.0
ret double %div
}
; CHECK-LABEL: unsafe_fp_math_default2:
define double @unsafe_fp_math_default2(double %x) {
; With unsafe math enabled, can change this div to a mul.
; UNSAFE: mulsd
%div = fdiv arcp double %x, 3.0
ret double %div
}
; CHECK-LABEL: safe_fp_math_default2:
define double @safe_fp_math_default2(double %x) {
; With unsafe math enabled, can change this div to a mul.
; SAFE: divsd
%div = fdiv double %x, 3.0
ret double %div
}
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