derek.holloway
7502bf64a4
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90 lines
2.5 KiB
LLVM
90 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; Test conversion of floating-point values to unsigned i64s (z10 only).
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; z10 doesn't have native support for unsigned fp-to-i64 conversions;
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; they were added in z196 as the Convert to Logical family of instructions.
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; Convert via signed i64s instead.
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; Test f16->i64. Converted to signed as the max float value is smaller than
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; the signed integer range.
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define i64 @f0(half %f) {
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; CHECK-LABEL: f0:
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; CHECK: # %bb.0:
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; CHECK-NEXT: stmg %r14, %r15, 112(%r15)
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; CHECK-NEXT: .cfi_offset %r14, -48
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; CHECK-NEXT: .cfi_offset %r15, -40
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; CHECK-NEXT: aghi %r15, -160
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; CHECK-NEXT: .cfi_def_cfa_offset 320
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; CHECK-NEXT: brasl %r14, __extendhfsf2@PLT
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; CHECK-NEXT: cgebr %r2, 5, %f0
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; CHECK-NEXT: lmg %r14, %r15, 272(%r15)
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; CHECK-NEXT: br %r14
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%conv = fptoui half %f to i64
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ret i64 %conv
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}
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; Test f32->i64.
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define i64 @f1(float %f) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI1_0
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; CHECK-NEXT: le %f1, 0(%r1)
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; CHECK-NEXT: cebr %f0, %f1
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; CHECK-NEXT: jnl .LBB1_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: cgebr %r2, 5, %f0
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; CHECK-NEXT: br %r14
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; CHECK-NEXT: .LBB1_2:
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; CHECK-NEXT: sebr %f0, %f1
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; CHECK-NEXT: cgebr %r2, 5, %f0
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; CHECK-NEXT: xihf %r2, 2147483648
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; CHECK-NEXT: br %r14
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%conv = fptoui float %f to i64
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ret i64 %conv
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}
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; Test f64->i64.
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define i64 @f2(double %f) {
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; CHECK-LABEL: f2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI2_0
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; CHECK-NEXT: ld %f1, 0(%r1)
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; CHECK-NEXT: cdbr %f0, %f1
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; CHECK-NEXT: jnl .LBB2_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: cgdbr %r2, 5, %f0
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; CHECK-NEXT: br %r14
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; CHECK-NEXT: .LBB2_2:
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; CHECK-NEXT: sdbr %f0, %f1
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; CHECK-NEXT: cgdbr %r2, 5, %f0
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; CHECK-NEXT: xihf %r2, 2147483648
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; CHECK-NEXT: br %r14
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%conv = fptoui double %f to i64
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ret i64 %conv
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}
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; Test f128->i64.
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define i64 @f3(ptr %src) {
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; CHECK-LABEL: f3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ld %f0, 0(%r2)
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; CHECK-NEXT: ld %f2, 8(%r2)
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; CHECK-NEXT: larl %r1, .LCPI3_0
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; CHECK-NEXT: lxeb %f1, 0(%r1)
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; CHECK-NEXT: cxbr %f0, %f1
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; CHECK-NEXT: jnl .LBB3_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: cgxbr %r2, 5, %f0
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; CHECK-NEXT: br %r14
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; CHECK-NEXT: .LBB3_2:
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; CHECK-NEXT: sxbr %f0, %f1
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; CHECK-NEXT: cgxbr %r2, 5, %f0
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; CHECK-NEXT: xihf %r2, 2147483648
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; CHECK-NEXT: br %r14
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%f = load fp128, ptr %src
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%conv = fptoui fp128 %f to i64
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ret i64 %conv
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}
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