fp-strict-conv-10.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; Test strict conversion of floating-point values to unsigned i32s (z10 only).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
; z10 doesn't have native support for unsigned fp-to-i32 conversions;
; they were added in z196 as the Convert to Logical family of instructions.
; Promoting to i64 doesn't generate an inexact condition for values that are
; outside the i32 range but in the i64 range, so use the default expansion.
; Note that the strict expansion sequence must be used.
declare i32 @llvm.experimental.constrained.fptoui.i32.f32(float, metadata)
declare i32 @llvm.experimental.constrained.fptoui.i32.f64(double, metadata)
declare i32 @llvm.experimental.constrained.fptoui.i32.f128(fp128, metadata)
; Test f32->i32.
define i32 @f1(float %f) #0 {
; CHECK-LABEL: f1:
; CHECK: # %bb.0:
; CHECK-NEXT: larl %r1, .LCPI0_0
; CHECK-NEXT: le %f1, 0(%r1)
; CHECK-NEXT: kebr %f0, %f1
; CHECK-NEXT: jnl .LBB0_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: lhi %r0, 0
; CHECK-NEXT: lzer %f1
; CHECK-NEXT: j .LBB0_3
; CHECK-NEXT: .LBB0_2:
; CHECK-NEXT: llilh %r0, 32768
; CHECK-NEXT: .LBB0_3:
; CHECK-NEXT: sebr %f0, %f1
; CHECK-NEXT: cfebr %r2, 5, %f0
; CHECK-NEXT: xr %r2, %r0
; CHECK-NEXT: br %r14
%conv = call i32 @llvm.experimental.constrained.fptoui.i32.f32(float %f,
metadata !"fpexcept.strict") #0
ret i32 %conv
}
; Test f64->i32.
define i32 @f2(double %f) #0 {
; CHECK-LABEL: f2:
; CHECK: # %bb.0:
; CHECK-NEXT: larl %r1, .LCPI1_0
; CHECK-NEXT: ldeb %f1, 0(%r1)
; CHECK-NEXT: kdbr %f0, %f1
; CHECK-NEXT: jnl .LBB1_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: lhi %r0, 0
; CHECK-NEXT: lzdr %f1
; CHECK-NEXT: j .LBB1_3
; CHECK-NEXT: .LBB1_2:
; CHECK-NEXT: llilh %r0, 32768
; CHECK-NEXT: .LBB1_3:
; CHECK-NEXT: sdbr %f0, %f1
; CHECK-NEXT: cfdbr %r2, 5, %f0
; CHECK-NEXT: xr %r2, %r0
; CHECK-NEXT: br %r14
%conv = call i32 @llvm.experimental.constrained.fptoui.i32.f64(double %f,
metadata !"fpexcept.strict") #0
ret i32 %conv
}
; Test f128->i32.
define i32 @f3(fp128 *%src) #0 {
; CHECK-LABEL: f3:
; CHECK: # %bb.0:
; CHECK-NEXT: ld %f0, 0(%r2)
; CHECK-NEXT: ld %f2, 8(%r2)
; CHECK-NEXT: larl %r1, .LCPI2_0
; CHECK-NEXT: lxeb %f1, 0(%r1)
; CHECK-NEXT: kxbr %f0, %f1
; CHECK-NEXT: jnl .LBB2_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: lhi %r0, 0
; CHECK-NEXT: lzxr %f1
; CHECK-NEXT: j .LBB2_3
; CHECK-NEXT: .LBB2_2:
; CHECK-NEXT: llilh %r0, 32768
; CHECK-NEXT: .LBB2_3:
; CHECK-NEXT: sxbr %f0, %f1
; CHECK-NEXT: cfxbr %r2, 5, %f0
; CHECK-NEXT: xr %r2, %r0
; CHECK-NEXT: br %r14
%f = load fp128, fp128 *%src
%conv = call i32 @llvm.experimental.constrained.fptoui.i32.f128(fp128 %f,
metadata !"fpexcept.strict") #0
ret i32 %conv
}
attributes #0 = { strictfp }