Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/CodeGen/SystemZ/trap-05.ll

@@ -1,92 +0,0 @@
-; Test load-and-trap instructions (LFHAT)
-; See comments in asm-18.ll about testing high-word operations.
-;
-; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 \
-; RUN:   -no-integrated-as | FileCheck %s
-
-declare void @llvm.trap()
-
-; Check LAT with no displacement.
-define void @f1(i32 *%ptr) {
-; CHECK-LABEL: f1:
-; CHECK: lfhat [[REG:%r[0-9]+]], 0(%r2)
-; CHECK: stepa [[REG]]
-; CHECK: br %r14
-entry:
-  %val = load i32, i32 *%ptr
-  %cmp = icmp eq i32 %val, 0
-  br i1 %cmp, label %if.then, label %if.end
-
-if.then:                                          ; preds = %entry
-  tail call void @llvm.trap()
-  unreachable
-
-if.end:                                           ; preds = %entry
-  call void asm sideeffect "stepa $0", "h"(i32 %val)
-  ret void;
-}
-
-; Check the high end of the LAT range.
-define void @f2(i32 *%src) {
-; CHECK-LABEL: f2:
-; CHECK: lfhat [[REG:%r[0-9]+]], 524284(%r2)
-; CHECK: stepa [[REG]]
-; CHECK: br %r14
-  %ptr = getelementptr i32, i32 *%src, i64 131071
-  %val = load i32, i32 *%ptr
-  %cmp = icmp eq i32 %val, 0
-  br i1 %cmp, label %if.then, label %if.end
-
-if.then:                                          ; preds = %entry
-  tail call void @llvm.trap()
-  unreachable
-
-if.end:                                           ; preds = %entry
-  call void asm sideeffect "stepa $0", "h"(i32 %val)
-  ret void;
-}
-
-; Check the next word up, which needs separate address logic.
-; Other sequences besides this one would be OK.
-define void @f3(i32 *%src) {
-; CHECK-LABEL: f3:
-; CHECK: agfi %r2, 524288
-; CHECK: lfhat [[REG:%r[0-9]+]], 0(%r2)
-; CHECK: stepa [[REG]]
-; CHECK: br %r14
-  %ptr = getelementptr i32, i32 *%src, i64 131072
-  %val = load i32, i32 *%ptr
-  %cmp = icmp eq i32 %val, 0
-  br i1 %cmp, label %if.then, label %if.end
-
-if.then:                                          ; preds = %entry
-  tail call void @llvm.trap()
-  unreachable
-
-if.end:                                           ; preds = %entry
-  call void asm sideeffect "stepa $0", "h"(i32 %val)
-  ret void;
-}
-
-; Check that LAT allows an index.
-define void @f4(i64 %src, i64 %index) {
-; CHECK-LABEL: f4:
-; CHECK: lfhat [[REG:%r[0-9]+]], 524287(%r3,%r2)
-; CHECK: stepa [[REG]]
-; CHECK: br %r14
-  %add1 = add i64 %src, %index
-  %add2 = add i64 %add1, 524287
-  %ptr = inttoptr i64 %add2 to i32 *
-  %val = load i32, i32 *%ptr
-  %cmp = icmp eq i32 %val, 0
-  br i1 %cmp, label %if.then, label %if.end
-
-if.then:                                          ; preds = %entry
-  tail call void @llvm.trap()
-  unreachable
-
-if.end:                                           ; preds = %entry
-  call void asm sideeffect "stepa $0", "h"(i32 %val)
-  ret void;
-}
-