Files
clang-p2996/llvm/test/CodeGen/SystemZ/fp-copysign-02.ll
Kai Nacke a1710eb3cd [SystemZ][NFC] Opaque pointer migration.
The LIT test cases were migrated with the script provided by
Nikita Popov.

No manual changes were made. Committed without review since
no functional changes, after consultation with uweigand.
2022-10-11 21:09:43 +00:00

82 lines
2.4 KiB
LLVM

; Test f128 copysign operations on z14.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
declare float @copysignf(float, float) readnone
declare double @copysign(double, double) readnone
; FIXME: not really the correct prototype for SystemZ.
declare fp128 @copysignl(fp128, fp128) readnone
; Test f32 copies in which the sign comes from an f128.
define float @f1(float %a, ptr %bptr) {
; CHECK-LABEL: f1:
; CHECK: vl %v[[REG:[0-9]+]], 0(%r2)
; CHECK: cpsdr %f0, %f[[REG]], %f0
; CHECK: br %r14
%bl = load volatile fp128, ptr %bptr
%b = fptrunc fp128 %bl to float
%res = call float @copysignf(float %a, float %b) readnone
ret float %res
}
; Test f64 copies in which the sign comes from an f128.
define double @f2(double %a, ptr %bptr) {
; CHECK-LABEL: f2:
; CHECK: vl %v[[REG:[0-9]+]], 0(%r2)
; CHECK: cpsdr %f0, %f[[REG]], %f0
; CHECK: br %r14
%bl = load volatile fp128, ptr %bptr
%b = fptrunc fp128 %bl to double
%res = call double @copysign(double %a, double %b) readnone
ret double %res
}
; Test f128 copies in which the sign comes from an f32.
define void @f7(ptr %cptr, ptr %aptr, float %bf) {
; CHECK-LABEL: f7:
; CHECK: vl [[REG1:%v[0-7]+]], 0(%r3)
; CHECK: tmlh
; CHECK: wflnxb [[REG2:%v[0-9]+]], [[REG1]]
; CHECK: wflpxb [[REG2]], [[REG1]]
; CHECK: vst [[REG2]], 0(%r2)
; CHECK: br %r14
%a = load volatile fp128, ptr %aptr
%b = fpext float %bf to fp128
%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
store fp128 %c, ptr %cptr
ret void
}
; As above, but the sign comes from an f64.
define void @f8(ptr %cptr, ptr %aptr, double %bd) {
; CHECK-LABEL: f8:
; CHECK: vl [[REG1:%v[0-7]+]], 0(%r3)
; CHECK: tmhh
; CHECK: wflnxb [[REG2:%v[0-9]+]], [[REG1]]
; CHECK: wflpxb [[REG2]], [[REG1]]
; CHECK: vst [[REG2]], 0(%r2)
; CHECK: br %r14
%a = load volatile fp128, ptr %aptr
%b = fpext double %bd to fp128
%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
store fp128 %c, ptr %cptr
ret void
}
; As above, but the sign comes from an f128.
define void @f9(ptr %cptr, ptr %aptr, ptr %bptr) {
; CHECK-LABEL: f9:
; CHECK: vl [[REG1:%v[0-7]+]], 0(%r3)
; CHECK: vl [[REG2:%v[0-7]+]], 0(%r4)
; CHECK: tm
; CHECK: wflnxb [[REG1]], [[REG1]]
; CHECK: wflpxb [[REG1]], [[REG1]]
; CHECK: vst [[REG1]], 0(%r2)
; CHECK: br %r14
%a = load volatile fp128, ptr %aptr
%b = load volatile fp128, ptr %bptr
%c = call fp128 @copysignl(fp128 %a, fp128 %b) readnone
store fp128 %c, ptr %cptr
ret void
}