llvm-6502/test/CodeGen/SystemZ/fp-conv-14.ll
Richard Sandiford 6b6889d87b [SystemZ] Add support for z196 float<->unsigned conversions
These complement the older float<->signed instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204451 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-21 10:56:30 +00:00

64 lines
1.3 KiB
LLVM

; Test conversion of floating-point values to unsigned integers.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
; Test f32->i32.
define i32 @f1(float %f) {
; CHECK-LABEL: f1:
; CHECK: clfebr %r2, 5, %f0, 0
; CHECK: br %r14
%conv = fptoui float %f to i32
ret i32 %conv
}
; Test f64->i32.
define i32 @f2(double %f) {
; CHECK-LABEL: f2:
; CHECK: clfdbr %r2, 5, %f0, 0
; CHECK: br %r14
%conv = fptoui double %f to i32
ret i32 %conv
}
; Test f128->i32.
define i32 @f3(fp128 *%src) {
; CHECK-LABEL: f3:
; CHECK-DAG: ld %f0, 0(%r2)
; CHECK-DAG: ld %f2, 8(%r2)
; CHECK: clfxbr %r2, 5, %f0, 0
; CHECK: br %r14
%f = load fp128 *%src
%conv = fptoui fp128 %f to i32
ret i32 %conv
}
; Test f32->i64.
define i64 @f4(float %f) {
; CHECK-LABEL: f4:
; CHECK: clgebr %r2, 5, %f0, 0
; CHECK: br %r14
%conv = fptoui float %f to i64
ret i64 %conv
}
; Test f64->i64.
define i64 @f5(double %f) {
; CHECK-LABEL: f5:
; CHECK: clgdbr %r2, 5, %f0, 0
; CHECK: br %r14
%conv = fptoui double %f to i64
ret i64 %conv
}
; Test f128->i64.
define i64 @f6(fp128 *%src) {
; CHECK-LABEL: f6:
; CHECK-DAG: ld %f0, 0(%r2)
; CHECK-DAG: ld %f2, 8(%r2)
; CHECK: clgxbr %r2, 5, %f0, 0
; CHECK: br %r14
%f = load fp128 *%src
%conv = fptoui fp128 %f to i64
ret i64 %conv
}