Files
clang-p2996/llvm/test/CodeGen/SystemZ/fp-conv-12.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

72 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; Test conversion of floating-point values to unsigned i64s (z10 only).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
; z10 doesn't have native support for unsigned fp-to-i64 conversions;
; they were added in z196 as the Convert to Logical family of instructions.
; Convert via signed i64s instead.
; Test f32->i64.
define i64 @f1(float %f) {
; CHECK-LABEL: f1:
; CHECK: # %bb.0:
; CHECK-NEXT: larl %r1, .LCPI0_0
; CHECK-NEXT: le %f1, 0(%r1)
; CHECK-NEXT: cebr %f0, %f1
; CHECK-NEXT: jnl .LBB0_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: cgebr %r2, 5, %f0
; CHECK-NEXT: br %r14
; CHECK-NEXT: .LBB0_2:
; CHECK-NEXT: sebr %f0, %f1
; CHECK-NEXT: cgebr %r2, 5, %f0
; CHECK-NEXT: xihf %r2, 2147483648
; CHECK-NEXT: br %r14
%conv = fptoui float %f to i64
ret i64 %conv
}
; Test f64->i64.
define i64 @f2(double %f) {
; CHECK-LABEL: f2:
; CHECK: # %bb.0:
; CHECK-NEXT: larl %r1, .LCPI1_0
; CHECK-NEXT: ld %f1, 0(%r1)
; CHECK-NEXT: cdbr %f0, %f1
; CHECK-NEXT: jnl .LBB1_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: cgdbr %r2, 5, %f0
; CHECK-NEXT: br %r14
; CHECK-NEXT: .LBB1_2:
; CHECK-NEXT: sdbr %f0, %f1
; CHECK-NEXT: cgdbr %r2, 5, %f0
; CHECK-NEXT: xihf %r2, 2147483648
; CHECK-NEXT: br %r14
%conv = fptoui double %f to i64
ret i64 %conv
}
; Test f128->i64.
define i64 @f3(ptr %src) {
; 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: cxbr %f0, %f1
; CHECK-NEXT: jnl .LBB2_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: cgxbr %r2, 5, %f0
; CHECK-NEXT: br %r14
; CHECK-NEXT: .LBB2_2:
; CHECK-NEXT: sxbr %f0, %f1
; CHECK-NEXT: cgxbr %r2, 5, %f0
; CHECK-NEXT: xihf %r2, 2147483648
; CHECK-NEXT: br %r14
%f = load fp128, ptr %src
%conv = fptoui fp128 %f to i64
ret i64 %conv
}