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llvm-mirror/test/CodeGen/SystemZ/fp-strict-add-02.ll
Kevin P. Neal a24a01e0c1 [FPEnv] Strict FP tests should use the requisite function attributes.
A set of function attributes is required in any function that uses constrained
floating point intrinsics. None of our tests use these attributes.

This patch fixes this.

These tests have been tested against the IR verifier changes in D68233.

Reviewed by:	andrew.w.kaylor, cameron.mcinally, uweigand
Approved by:	andrew.w.kaylor
Differential Revision:	https://reviews.llvm.org/D67925

llvm-svn: 373761
2019-10-04 17:03:46 +00:00

175 lines
6.9 KiB
LLVM

; Test strict 64-bit floating-point addition.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 -verify-machineinstrs | FileCheck %s
declare double @foo()
declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata)
; Check register addition.
define double @f1(double %f1, double %f2) #0 {
; CHECK-LABEL: f1:
; CHECK: adbr %f0, %f2
; CHECK: br %r14
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the low end of the ADB range.
define double @f2(double %f1, double *%ptr) #0 {
; CHECK-LABEL: f2:
; CHECK: adb %f0, 0(%r2)
; CHECK: br %r14
%f2 = load double, double *%ptr
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the high end of the aligned ADB range.
define double @f3(double %f1, double *%base) #0 {
; CHECK-LABEL: f3:
; CHECK: adb %f0, 4088(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 511
%f2 = load double, double *%ptr
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the next doubleword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f4(double %f1, double *%base) #0 {
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: adb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 512
%f2 = load double, double *%ptr
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check negative displacements, which also need separate address logic.
define double @f5(double %f1, double *%base) #0 {
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -8
; CHECK: adb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 -1
%f2 = load double, double *%ptr
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check that ADB allows indices.
define double @f6(double %f1, double *%base, i64 %index) #0 {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 3
; CHECK: adb %f0, 800(%r1,%r2)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%base, i64 %index
%ptr2 = getelementptr double, double *%ptr1, i64 100
%f2 = load double, double *%ptr2
%res = call double @llvm.experimental.constrained.fadd.f64(
double %f1, double %f2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
; Check that additions of spilled values can use ADB rather than ADBR.
define double @f7(double *%ptr0) #0 {
; CHECK-LABEL: f7:
; CHECK: brasl %r14, foo@PLT
; CHECK-SCALAR: adb %f0, 160(%r15)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%ptr0, i64 2
%ptr2 = getelementptr double, double *%ptr0, i64 4
%ptr3 = getelementptr double, double *%ptr0, i64 6
%ptr4 = getelementptr double, double *%ptr0, i64 8
%ptr5 = getelementptr double, double *%ptr0, i64 10
%ptr6 = getelementptr double, double *%ptr0, i64 12
%ptr7 = getelementptr double, double *%ptr0, i64 14
%ptr8 = getelementptr double, double *%ptr0, i64 16
%ptr9 = getelementptr double, double *%ptr0, i64 18
%ptr10 = getelementptr double, double *%ptr0, i64 20
%val0 = load double, double *%ptr0
%val1 = load double, double *%ptr1
%val2 = load double, double *%ptr2
%val3 = load double, double *%ptr3
%val4 = load double, double *%ptr4
%val5 = load double, double *%ptr5
%val6 = load double, double *%ptr6
%val7 = load double, double *%ptr7
%val8 = load double, double *%ptr8
%val9 = load double, double *%ptr9
%val10 = load double, double *%ptr10
%ret = call double @foo() #0
%add0 = call double @llvm.experimental.constrained.fadd.f64(
double %ret, double %val0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add1 = call double @llvm.experimental.constrained.fadd.f64(
double %add0, double %val1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add2 = call double @llvm.experimental.constrained.fadd.f64(
double %add1, double %val2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add3 = call double @llvm.experimental.constrained.fadd.f64(
double %add2, double %val3,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add4 = call double @llvm.experimental.constrained.fadd.f64(
double %add3, double %val4,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add5 = call double @llvm.experimental.constrained.fadd.f64(
double %add4, double %val5,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add6 = call double @llvm.experimental.constrained.fadd.f64(
double %add5, double %val6,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add7 = call double @llvm.experimental.constrained.fadd.f64(
double %add6, double %val7,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add8 = call double @llvm.experimental.constrained.fadd.f64(
double %add7, double %val8,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add9 = call double @llvm.experimental.constrained.fadd.f64(
double %add8, double %val9,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%add10 = call double @llvm.experimental.constrained.fadd.f64(
double %add9, double %val10,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %add10
}
attributes #0 = { strictfp }